Content Copy Of Original Ministry of the Environment Conservation and Parks

Ministegravere de lrsquoEnvironnement de la Protection de la nature et des Parcs

AMENDED ENVIRONMENTAL COMPLIANCE APPROVALNUMBER 0732-B2MKYLIssue Date July 20 2018

Bruce Power Inc177 Tie Rd TivertonKincardine OntarioN0G 2T0

Site LocationBruce A Nuclear Generaing StationLots 28 and 29 Lake RangeMunicipality of Kincardine County of Bruce

You have applied under section 202 of Part II1 of the Environmental Protection Act RSO 1990 c E 19 (Environmental Protection Act) for approval of

existing sewage works for the collection transmission treatment and disposal of effluents at Reactor Units 1 to 4 at the Bruce A Nuclear Generating Station consisting of the followingA COOLING WATER piping for the collection and discharge of condenser cooling water from each of the three (3) low pressure turbine steam condensers at each of the four (4) Reactor Units at a design rate of approximately 39 cubic metres per second per Unit based on the operation of all three (3) intake water feed pumps at each Reactor Unit to the Cooling Water Discharge Duct (CWDD) and via the Discharge Structure and the Discharge Channel to Lake Huron a reinforced concrete CWDD extending from Reactor Unit 4 in the east to the Outfall Structure in the west at the start of the Discharge Channel a reinforced concrete Outfall Structure at the west end of the CWDD to outlet spent cooling water to the Discharge Channel which empties into Lake Huron and including a Recirculation Duct which allows part of the Discharge Channel water to be diverted as required during the winter to the Intake Channel to prevent the formation of frazil ice piping and equipment to allow the injection of sulphur hexafluoride to the inlet waterbox side of each condenser for tube leak testing at a typical rate of one test per Reactor Unit per month with the test solution discharged to the CWDD a tube cleaning system at each condenser consisting of neutral buoyancy sponge rubber balls fed at the inlet waterbox to the condenser tubes and collected at the outlet waterbox and returned via a connecting pipe between the inlet and outlet waterboxes in a closed loop cycle piping to allow the connection of an approved third party sodium hypochlorite addition system to provide zebra mussel control for the Low Pressure Service Water (LPSW) and its screen wash system the two (2) Common Service Water Systems (CSW I in the Old Water Treatment Plant (OWTP) and CSW II in the Unit 3 and Unit 4

Pumphouses) the Condenser Cooling Water (CCW) screen wash system in each of the four (4) Pumphouses and including the raw water supply at the OWTP for domestic use and the supply to the New Water Treatment Plant for demineralized water with discharge of spent water and wastewater from the LPSW CSW and CCW systems to the CWDD and hence to Lake HuronB WATER TREATMENT PLANT Common Service Water (CSW) piping to convey screened raw lake water to the New Water Treatment Building south of the Station Intake Channel for the production of demineralized water at a typical rate of 9800 cubic metres per day with the treatment works consisting of the following units splitter box to divide the inflow into two streams feeding in parallel two (2) Solid Contact Clarifiers where lime slurry as required and coagulant polymer solution flocculant solution and sulphuric acid (for pH control) are added with the solids discharged to the Sludge Holding Ponds and the treated water decanted to four (4) downflow Sand Filters operating in parallel with piping to convey filtered water to the Filtered Water Sump piping to convey backwash from the Sand Filters to two (2) Backwash Sumps each approximately 58 metres by 139 metres by 24 metres deep each with a volume of approximately 196 cubic metres and including overflow lines to the Sludge Holding Ponds and two (2) recycle pumps each rated at 40 Litres per second to convey sump effluent to the Solid Contact Clarifiers two (2) clay lined Sludge Holding Ponds each 640 metres by 274 metres by 34 metres deep located south of the New Water Treatment Building equipped with a decanting system to pump water to the Backwash Sump with Pond overflows directed via yard drainage to the Cooling Water (CW) Intake Channel a weeping tile bed system for each Sludge Holding Pond to collect groundwater from the area around the Ponds and direct it to a weeping tile drain sump for discharge to a nearby drainage ditch one (1) concrete Filtered Water Sump with a volume of approximately 2700 cubic metres with an emergency overflow line to the CW Intake Channel and discharge via four (4) Filtered Water Pumps to a common header feeding three (3) identical demineralization trains each consisting of a carbon filter a cation exchanger a decarbonator an anion exchanger and a mixed bed ion exchanger with the treated water from each train conveyed to Storage Tanks for use in the Station process systems two (2) concrete lined Neutralizing Sumps each approximately 12 metres by 37 metres by 24 metres deep to collect regeneration unit backwash and acidcaustic unloading pad drains with an automatic neutralizing control system a recirculation line and two pumps each rated at approximately 3400 Litres per minute to discharge the neutralized contents via MISA Control Point 1400 to the CWDD

a concrete spill containment area for a 75 cubic metre Calcium Hydroxide (Lime)

Solution Storage Tank and a 1100 Litre Polyelectrolyte Solution Tank with drainage from the area directed to the Backwash Sump

concrete spill containment pads for Lime and acidcaustic truck unloading with drainage directed to the Backwash Sump and the Neutralizing Sump respectively A system for the collection and discharge of non-radioactive effluent from four (4) Turbine Hall Sumps one in each of four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute for Reactor Units 3 and 4 and 378 litres per minute for Units 1 and 2 to the Turbine Building Area Sump Water Treatment System and eventually to CWDD via MISA Control Point 2800 consisting of work as follow piping from the Turbine Hall Sumps to transfer sump contents to the Turbine Building Area Water Treatment System

one (1) North Sump and one (1) South Sump each with a working capacity of approximately 368000 Litres (97000 US GAL)

four (4) Wastewater Treatment Pumps each with a rated flow of 1250 Litres per minute (330 USGPM)

one (1) particulate filter with a nominal size of 10 microns and a total design flow of 1140 Litres per minute (300 USGPM)

one (1) oil filter with total design flow of 1140 Litres per minute (300 USGPM)

two (2) calcite filters containing calcite and gravel media with a media volume of approximately 45 cubic metres with a total design flow to each filter of 1140 Litres per minute (300 USGPM)

one (1) Sulphuric Acid Injection System composed of one (1) stationary tote with a capacity of 1500 Litres and one (1) transit tote with a capacity of 1000 Litres two (2) metering pumps each with a capacity range of 1 to 22 Litres per hour

one (1) Sodium Hypochlorite Injection System composed of one (1) stationary tote with a capacity of 1500 Litres and one (1) transit tote with a capacity of 1000 Litres two (2) metering pumps rated at 15 to 150 Litres per hour and two (2) metering pumps rated at 150 to 600 Litres per hour

two (2) Activated Carbon Filters each with a media volume of approximately 43 cubic metres with a total design flow to each filter of 1140 Litres per minute (300 USGPM)

C BOILER BLOWDOWN CONDENSATE AND FEEDWATER

collection and transmission facilities for directing continuous and intermittent blowdown and intermittent blowdown during lay-up from each of the eight (8) boilers four (4) preheaters and two (2) steam drums associated with each of the four (4) Reactor Unit boiler steam and feedwater systems via 38 and 102 millimetre diameter piping and headers to the CWDD and hence to Lake Huron one (1) common header for Building Heating Steam supplied from one of the Reactor Units steam turbines or from the Bruce Steam Plant or from Off Site Vendor with condensate flow to the Condensate Return Tank in each Unit two (2) Condensate Return Tank Pumps each rated at 35 Litres per second to discharge the collected condensate to the CWDD Condensate when needed to eliminate personnel and equipment safety issues is directed to the CWDD via alternate inactive drainage pathways piping to direct boiler operational and shutdownstandby intermittent blowdown and maintenance shutdown drainage from the back-up electric boiler to the CWDD two (2) 51 millimetre diameter rubber steam hoses connected to the steam supply at the Old Water Treatment Plant Building to continuously inject steam to the Common Service Water (CSW I) Intake upstream of the travelling screens as required during cold weather with eventual discharge as part of the CSW I discharge to the CWDD and hence to Lake Huron piping to allow the drainage of process effluent from specific equipment in the boiler and feedwater system to the CWDDD ACTIVE (RADIOACTIVE) LIQUID WASTE (ALW)A system for the collection transmission and treatment of radioactive wastes with discharge of the treated aqueous wastes via MISA Control Point 0100 to the CWDD and hence to Lake Huron includingFEED COLLECTION SYSTEM four (4) 136 cubic metre Collection Tanks each with a pump and a recirculation line with discharge via a common header to the pre-treatment system including a provision for emergency discharge directly to the CWDD through a shut-off valve which is normally locked a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other effective reagent that can safely degrade hydrazine to the Collection Tanks via Active Drainage Sump 5 to react with elevated hydrazine concentrations in the ALW Collection System (ie tanks)PRE-TREATMENT SYSTEM a skid mounted automatic two-stage batch pre-treatment system designed for a maximum flow of approximately 11 cubic metres per hour consisting of the following equipment in sequence one (1) Equalization Tank with a volume of approximately 76 cubic metres receiving effluent from any of the collection tanks two (2) 100 duty Equalization Transfer Pumps each rated at approximately 950 Litres per minute taking effluent from the Equalization Tank and discharging to the First Stage Reaction Tank

one (1) 45 cubic metre First Stage Reaction Tank with high-speed agitation and provision for direct addition of clay powder flocculant to a concentration range of approximately 01 to 4 grams per Litre and draining to the First Stage Band Filter one (1) 30 micron First Stage Band Filter with dewatering press rollers discharging filtrate to the First Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) First Stage Filtrate Collection Tank with a volume of 45 cubic metres receiving effluent from the First Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at 870 Litres per minute taking effluent from the First Stage Filtrate Collection Tank and discharging to the Second Stage Reaction Tank one (1) 45 cubic metre Second Stage Reaction Tank with high-speed agitation and facilities for the addition of flocculant as a liquid suspension or in granular form to provide a concentration in the range of 20 to 100 milligrams per Litre one (1) 30 micron Second Stage Band Filter with dewatering press rollers discharging to the Second Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) 45 cubic metre Second Stage Filtrate Collection Tank receiving effluent from the Second Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at approximately 870 Litres per minute taking effluent from the Second Stage Filtrate Collection Tank and discharging through one of two (2) bag filters rated at 5 microns to a 76 cubic metre Buffer Tank two (2) 100 duty Buffer Tank Discharge Pumps each rated at approximately 380 Litres per minute taking effluent from the Buffer Tank and discharging to the Filtration and Reverse Osmosis Systems for further treatment one (1) granulated activated carbon (GAC) tank containing approximately 02 cubic metres of GAC including associated piping and valving to bring the GAC Unit on-line as needed to treat the bag filter effluent prior to discharge to the Buffer Tank a process to add sodium hydrogen sulphite solution (30 to 60 weightvolume) to the First Stage Filtrate Collection Tank to react with elevated Total Residual Chlorine concentrations in the ALW Collection SystemFILTRATION SYSTEM one (1) backwashable filtration system consisting of two (2) filter units in parallel and a 15 cubic metre Filter Backwash Slurry (FBS) Tank with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the Reverse Osmosis System (ROS) or to the Discharge System with automatic backwash of the isolated filter unit to the FBS Tank piping and pumps to transfer batch quantities of the high gamma ray active waste from the FBS Tank to the Evaporator Solidification System (ESS) Feed Tanks one (1) disposable filter system consisting of two (2) filter units with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the ROS or to the Discharge System

piping and chemical injection pumps to meter flocculant to the inlet of the Backwashable Filtration System (BFS)Disposable Filtration System (DFS) piping and injection pumps to meter pre-coat material to pre-coat the BFS filter elements whenever the BFS is online one (1) ion exchange column containing mixed bed resin with associated piping and valving to bring it online to treat BFSDFS filtrate as a replacement for the ROS whenever the ROS is off-lineREVERSE OSMOSIS SYSTEM (ROS) one (1) Reverse Osmosis System (ROS) including four (4) sub-systems - Primary Reverse Osmosis 1 Crystallizer Reverse Osmosis 2 ReactionDecant Tanks and Crystallizer Ultrafiltration consisting ofReverse Osmosis 1 one (1) 135 cubic metre RO1 Feed Tank two (2) feed pumps each rated at approximately 270 Litres per minute two (2) process booster pumps each rated at approximately 380 Litres per minute feeding two RO sets of five (5) parallel membrane pressure vessels with discharge from the RO Units to a common Permeate Verification Tank with two (2) Permeate Transfer Pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Filters in the Discharge System a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other reagent that can safely degrade hydrazine to the Permeate Verification Tank to react with elevated hydrazine concentrations in the ALW Discharge System (ie tanks) If the Discharge System does not meet the discharge release specifications then the tank contents are returned to the Collection System for reprocessingCrystallizer Reverse Osmosis 2 piping to convey the reject concentrate from the Primary RO1 Units the recycled concentrate reject from the Crystallizer RO2 Units and the permeate from the Ultrafiltration Unit to the RO2 Feed Tank with 2 Feed Pumps each rated at approximately 95 Litres per minute feeding two sets of five (5) parallel membrane pressure vessels with permeate recycled to the RO1 Feed Tank and the concentrate reject recycled to the RO2 Feed Tank or conveyed to the ReactionDecant SystemReactionDecant two (2) Reaction Tanks each with a volume of approximately 2 cubic metres including caustic addition to produce a precipitate with the supernatant solution from either Tank conveyed to the Ultrafiltration (UF) Crystallizer Feed Tanks and the high solids effluent to the Evaporation and Solidification System Crystallizer Ultrafiltration (UF) two (2) UF feed pumps each rated at approximately 13 Litres per second feeding two (2) Crystallizer UF Units each with eight (8) membrane vessels with provision for circulating the concentrate reject via a heat exchanger for each UF Unit to the Feed Tanks or to discharge to the RO Storage Tank for feed to the EvaporationSolidification System with the permeate either returned to the UF Feed Tanks or returned to the RO2 Feed Tank

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

Pumphouses) the Condenser Cooling Water (CCW) screen wash system in each of the four (4) Pumphouses and including the raw water supply at the OWTP for domestic use and the supply to the New Water Treatment Plant for demineralized water with discharge of spent water and wastewater from the LPSW CSW and CCW systems to the CWDD and hence to Lake HuronB WATER TREATMENT PLANT Common Service Water (CSW) piping to convey screened raw lake water to the New Water Treatment Building south of the Station Intake Channel for the production of demineralized water at a typical rate of 9800 cubic metres per day with the treatment works consisting of the following units splitter box to divide the inflow into two streams feeding in parallel two (2) Solid Contact Clarifiers where lime slurry as required and coagulant polymer solution flocculant solution and sulphuric acid (for pH control) are added with the solids discharged to the Sludge Holding Ponds and the treated water decanted to four (4) downflow Sand Filters operating in parallel with piping to convey filtered water to the Filtered Water Sump piping to convey backwash from the Sand Filters to two (2) Backwash Sumps each approximately 58 metres by 139 metres by 24 metres deep each with a volume of approximately 196 cubic metres and including overflow lines to the Sludge Holding Ponds and two (2) recycle pumps each rated at 40 Litres per second to convey sump effluent to the Solid Contact Clarifiers two (2) clay lined Sludge Holding Ponds each 640 metres by 274 metres by 34 metres deep located south of the New Water Treatment Building equipped with a decanting system to pump water to the Backwash Sump with Pond overflows directed via yard drainage to the Cooling Water (CW) Intake Channel a weeping tile bed system for each Sludge Holding Pond to collect groundwater from the area around the Ponds and direct it to a weeping tile drain sump for discharge to a nearby drainage ditch one (1) concrete Filtered Water Sump with a volume of approximately 2700 cubic metres with an emergency overflow line to the CW Intake Channel and discharge via four (4) Filtered Water Pumps to a common header feeding three (3) identical demineralization trains each consisting of a carbon filter a cation exchanger a decarbonator an anion exchanger and a mixed bed ion exchanger with the treated water from each train conveyed to Storage Tanks for use in the Station process systems two (2) concrete lined Neutralizing Sumps each approximately 12 metres by 37 metres by 24 metres deep to collect regeneration unit backwash and acidcaustic unloading pad drains with an automatic neutralizing control system a recirculation line and two pumps each rated at approximately 3400 Litres per minute to discharge the neutralized contents via MISA Control Point 1400 to the CWDD

a concrete spill containment area for a 75 cubic metre Calcium Hydroxide (Lime)

Solution Storage Tank and a 1100 Litre Polyelectrolyte Solution Tank with drainage from the area directed to the Backwash Sump

concrete spill containment pads for Lime and acidcaustic truck unloading with drainage directed to the Backwash Sump and the Neutralizing Sump respectively A system for the collection and discharge of non-radioactive effluent from four (4) Turbine Hall Sumps one in each of four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute for Reactor Units 3 and 4 and 378 litres per minute for Units 1 and 2 to the Turbine Building Area Sump Water Treatment System and eventually to CWDD via MISA Control Point 2800 consisting of work as follow piping from the Turbine Hall Sumps to transfer sump contents to the Turbine Building Area Water Treatment System

one (1) North Sump and one (1) South Sump each with a working capacity of approximately 368000 Litres (97000 US GAL)

four (4) Wastewater Treatment Pumps each with a rated flow of 1250 Litres per minute (330 USGPM)

one (1) particulate filter with a nominal size of 10 microns and a total design flow of 1140 Litres per minute (300 USGPM)

one (1) oil filter with total design flow of 1140 Litres per minute (300 USGPM)

two (2) calcite filters containing calcite and gravel media with a media volume of approximately 45 cubic metres with a total design flow to each filter of 1140 Litres per minute (300 USGPM)

one (1) Sulphuric Acid Injection System composed of one (1) stationary tote with a capacity of 1500 Litres and one (1) transit tote with a capacity of 1000 Litres two (2) metering pumps each with a capacity range of 1 to 22 Litres per hour

one (1) Sodium Hypochlorite Injection System composed of one (1) stationary tote with a capacity of 1500 Litres and one (1) transit tote with a capacity of 1000 Litres two (2) metering pumps rated at 15 to 150 Litres per hour and two (2) metering pumps rated at 150 to 600 Litres per hour

two (2) Activated Carbon Filters each with a media volume of approximately 43 cubic metres with a total design flow to each filter of 1140 Litres per minute (300 USGPM)

C BOILER BLOWDOWN CONDENSATE AND FEEDWATER

collection and transmission facilities for directing continuous and intermittent blowdown and intermittent blowdown during lay-up from each of the eight (8) boilers four (4) preheaters and two (2) steam drums associated with each of the four (4) Reactor Unit boiler steam and feedwater systems via 38 and 102 millimetre diameter piping and headers to the CWDD and hence to Lake Huron one (1) common header for Building Heating Steam supplied from one of the Reactor Units steam turbines or from the Bruce Steam Plant or from Off Site Vendor with condensate flow to the Condensate Return Tank in each Unit two (2) Condensate Return Tank Pumps each rated at 35 Litres per second to discharge the collected condensate to the CWDD Condensate when needed to eliminate personnel and equipment safety issues is directed to the CWDD via alternate inactive drainage pathways piping to direct boiler operational and shutdownstandby intermittent blowdown and maintenance shutdown drainage from the back-up electric boiler to the CWDD two (2) 51 millimetre diameter rubber steam hoses connected to the steam supply at the Old Water Treatment Plant Building to continuously inject steam to the Common Service Water (CSW I) Intake upstream of the travelling screens as required during cold weather with eventual discharge as part of the CSW I discharge to the CWDD and hence to Lake Huron piping to allow the drainage of process effluent from specific equipment in the boiler and feedwater system to the CWDDD ACTIVE (RADIOACTIVE) LIQUID WASTE (ALW)A system for the collection transmission and treatment of radioactive wastes with discharge of the treated aqueous wastes via MISA Control Point 0100 to the CWDD and hence to Lake Huron includingFEED COLLECTION SYSTEM four (4) 136 cubic metre Collection Tanks each with a pump and a recirculation line with discharge via a common header to the pre-treatment system including a provision for emergency discharge directly to the CWDD through a shut-off valve which is normally locked a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other effective reagent that can safely degrade hydrazine to the Collection Tanks via Active Drainage Sump 5 to react with elevated hydrazine concentrations in the ALW Collection System (ie tanks)PRE-TREATMENT SYSTEM a skid mounted automatic two-stage batch pre-treatment system designed for a maximum flow of approximately 11 cubic metres per hour consisting of the following equipment in sequence one (1) Equalization Tank with a volume of approximately 76 cubic metres receiving effluent from any of the collection tanks two (2) 100 duty Equalization Transfer Pumps each rated at approximately 950 Litres per minute taking effluent from the Equalization Tank and discharging to the First Stage Reaction Tank

one (1) 45 cubic metre First Stage Reaction Tank with high-speed agitation and provision for direct addition of clay powder flocculant to a concentration range of approximately 01 to 4 grams per Litre and draining to the First Stage Band Filter one (1) 30 micron First Stage Band Filter with dewatering press rollers discharging filtrate to the First Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) First Stage Filtrate Collection Tank with a volume of 45 cubic metres receiving effluent from the First Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at 870 Litres per minute taking effluent from the First Stage Filtrate Collection Tank and discharging to the Second Stage Reaction Tank one (1) 45 cubic metre Second Stage Reaction Tank with high-speed agitation and facilities for the addition of flocculant as a liquid suspension or in granular form to provide a concentration in the range of 20 to 100 milligrams per Litre one (1) 30 micron Second Stage Band Filter with dewatering press rollers discharging to the Second Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) 45 cubic metre Second Stage Filtrate Collection Tank receiving effluent from the Second Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at approximately 870 Litres per minute taking effluent from the Second Stage Filtrate Collection Tank and discharging through one of two (2) bag filters rated at 5 microns to a 76 cubic metre Buffer Tank two (2) 100 duty Buffer Tank Discharge Pumps each rated at approximately 380 Litres per minute taking effluent from the Buffer Tank and discharging to the Filtration and Reverse Osmosis Systems for further treatment one (1) granulated activated carbon (GAC) tank containing approximately 02 cubic metres of GAC including associated piping and valving to bring the GAC Unit on-line as needed to treat the bag filter effluent prior to discharge to the Buffer Tank a process to add sodium hydrogen sulphite solution (30 to 60 weightvolume) to the First Stage Filtrate Collection Tank to react with elevated Total Residual Chlorine concentrations in the ALW Collection SystemFILTRATION SYSTEM one (1) backwashable filtration system consisting of two (2) filter units in parallel and a 15 cubic metre Filter Backwash Slurry (FBS) Tank with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the Reverse Osmosis System (ROS) or to the Discharge System with automatic backwash of the isolated filter unit to the FBS Tank piping and pumps to transfer batch quantities of the high gamma ray active waste from the FBS Tank to the Evaporator Solidification System (ESS) Feed Tanks one (1) disposable filter system consisting of two (2) filter units with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the ROS or to the Discharge System

piping and chemical injection pumps to meter flocculant to the inlet of the Backwashable Filtration System (BFS)Disposable Filtration System (DFS) piping and injection pumps to meter pre-coat material to pre-coat the BFS filter elements whenever the BFS is online one (1) ion exchange column containing mixed bed resin with associated piping and valving to bring it online to treat BFSDFS filtrate as a replacement for the ROS whenever the ROS is off-lineREVERSE OSMOSIS SYSTEM (ROS) one (1) Reverse Osmosis System (ROS) including four (4) sub-systems - Primary Reverse Osmosis 1 Crystallizer Reverse Osmosis 2 ReactionDecant Tanks and Crystallizer Ultrafiltration consisting ofReverse Osmosis 1 one (1) 135 cubic metre RO1 Feed Tank two (2) feed pumps each rated at approximately 270 Litres per minute two (2) process booster pumps each rated at approximately 380 Litres per minute feeding two RO sets of five (5) parallel membrane pressure vessels with discharge from the RO Units to a common Permeate Verification Tank with two (2) Permeate Transfer Pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Filters in the Discharge System a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other reagent that can safely degrade hydrazine to the Permeate Verification Tank to react with elevated hydrazine concentrations in the ALW Discharge System (ie tanks) If the Discharge System does not meet the discharge release specifications then the tank contents are returned to the Collection System for reprocessingCrystallizer Reverse Osmosis 2 piping to convey the reject concentrate from the Primary RO1 Units the recycled concentrate reject from the Crystallizer RO2 Units and the permeate from the Ultrafiltration Unit to the RO2 Feed Tank with 2 Feed Pumps each rated at approximately 95 Litres per minute feeding two sets of five (5) parallel membrane pressure vessels with permeate recycled to the RO1 Feed Tank and the concentrate reject recycled to the RO2 Feed Tank or conveyed to the ReactionDecant SystemReactionDecant two (2) Reaction Tanks each with a volume of approximately 2 cubic metres including caustic addition to produce a precipitate with the supernatant solution from either Tank conveyed to the Ultrafiltration (UF) Crystallizer Feed Tanks and the high solids effluent to the Evaporation and Solidification System Crystallizer Ultrafiltration (UF) two (2) UF feed pumps each rated at approximately 13 Litres per second feeding two (2) Crystallizer UF Units each with eight (8) membrane vessels with provision for circulating the concentrate reject via a heat exchanger for each UF Unit to the Feed Tanks or to discharge to the RO Storage Tank for feed to the EvaporationSolidification System with the permeate either returned to the UF Feed Tanks or returned to the RO2 Feed Tank

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

Solution Storage Tank and a 1100 Litre Polyelectrolyte Solution Tank with drainage from the area directed to the Backwash Sump

concrete spill containment pads for Lime and acidcaustic truck unloading with drainage directed to the Backwash Sump and the Neutralizing Sump respectively A system for the collection and discharge of non-radioactive effluent from four (4) Turbine Hall Sumps one in each of four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute for Reactor Units 3 and 4 and 378 litres per minute for Units 1 and 2 to the Turbine Building Area Sump Water Treatment System and eventually to CWDD via MISA Control Point 2800 consisting of work as follow piping from the Turbine Hall Sumps to transfer sump contents to the Turbine Building Area Water Treatment System

one (1) North Sump and one (1) South Sump each with a working capacity of approximately 368000 Litres (97000 US GAL)

four (4) Wastewater Treatment Pumps each with a rated flow of 1250 Litres per minute (330 USGPM)

one (1) particulate filter with a nominal size of 10 microns and a total design flow of 1140 Litres per minute (300 USGPM)

one (1) oil filter with total design flow of 1140 Litres per minute (300 USGPM)

two (2) calcite filters containing calcite and gravel media with a media volume of approximately 45 cubic metres with a total design flow to each filter of 1140 Litres per minute (300 USGPM)

one (1) Sulphuric Acid Injection System composed of one (1) stationary tote with a capacity of 1500 Litres and one (1) transit tote with a capacity of 1000 Litres two (2) metering pumps each with a capacity range of 1 to 22 Litres per hour

one (1) Sodium Hypochlorite Injection System composed of one (1) stationary tote with a capacity of 1500 Litres and one (1) transit tote with a capacity of 1000 Litres two (2) metering pumps rated at 15 to 150 Litres per hour and two (2) metering pumps rated at 150 to 600 Litres per hour

two (2) Activated Carbon Filters each with a media volume of approximately 43 cubic metres with a total design flow to each filter of 1140 Litres per minute (300 USGPM)

C BOILER BLOWDOWN CONDENSATE AND FEEDWATER

collection and transmission facilities for directing continuous and intermittent blowdown and intermittent blowdown during lay-up from each of the eight (8) boilers four (4) preheaters and two (2) steam drums associated with each of the four (4) Reactor Unit boiler steam and feedwater systems via 38 and 102 millimetre diameter piping and headers to the CWDD and hence to Lake Huron one (1) common header for Building Heating Steam supplied from one of the Reactor Units steam turbines or from the Bruce Steam Plant or from Off Site Vendor with condensate flow to the Condensate Return Tank in each Unit two (2) Condensate Return Tank Pumps each rated at 35 Litres per second to discharge the collected condensate to the CWDD Condensate when needed to eliminate personnel and equipment safety issues is directed to the CWDD via alternate inactive drainage pathways piping to direct boiler operational and shutdownstandby intermittent blowdown and maintenance shutdown drainage from the back-up electric boiler to the CWDD two (2) 51 millimetre diameter rubber steam hoses connected to the steam supply at the Old Water Treatment Plant Building to continuously inject steam to the Common Service Water (CSW I) Intake upstream of the travelling screens as required during cold weather with eventual discharge as part of the CSW I discharge to the CWDD and hence to Lake Huron piping to allow the drainage of process effluent from specific equipment in the boiler and feedwater system to the CWDDD ACTIVE (RADIOACTIVE) LIQUID WASTE (ALW)A system for the collection transmission and treatment of radioactive wastes with discharge of the treated aqueous wastes via MISA Control Point 0100 to the CWDD and hence to Lake Huron includingFEED COLLECTION SYSTEM four (4) 136 cubic metre Collection Tanks each with a pump and a recirculation line with discharge via a common header to the pre-treatment system including a provision for emergency discharge directly to the CWDD through a shut-off valve which is normally locked a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other effective reagent that can safely degrade hydrazine to the Collection Tanks via Active Drainage Sump 5 to react with elevated hydrazine concentrations in the ALW Collection System (ie tanks)PRE-TREATMENT SYSTEM a skid mounted automatic two-stage batch pre-treatment system designed for a maximum flow of approximately 11 cubic metres per hour consisting of the following equipment in sequence one (1) Equalization Tank with a volume of approximately 76 cubic metres receiving effluent from any of the collection tanks two (2) 100 duty Equalization Transfer Pumps each rated at approximately 950 Litres per minute taking effluent from the Equalization Tank and discharging to the First Stage Reaction Tank

one (1) 45 cubic metre First Stage Reaction Tank with high-speed agitation and provision for direct addition of clay powder flocculant to a concentration range of approximately 01 to 4 grams per Litre and draining to the First Stage Band Filter one (1) 30 micron First Stage Band Filter with dewatering press rollers discharging filtrate to the First Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) First Stage Filtrate Collection Tank with a volume of 45 cubic metres receiving effluent from the First Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at 870 Litres per minute taking effluent from the First Stage Filtrate Collection Tank and discharging to the Second Stage Reaction Tank one (1) 45 cubic metre Second Stage Reaction Tank with high-speed agitation and facilities for the addition of flocculant as a liquid suspension or in granular form to provide a concentration in the range of 20 to 100 milligrams per Litre one (1) 30 micron Second Stage Band Filter with dewatering press rollers discharging to the Second Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) 45 cubic metre Second Stage Filtrate Collection Tank receiving effluent from the Second Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at approximately 870 Litres per minute taking effluent from the Second Stage Filtrate Collection Tank and discharging through one of two (2) bag filters rated at 5 microns to a 76 cubic metre Buffer Tank two (2) 100 duty Buffer Tank Discharge Pumps each rated at approximately 380 Litres per minute taking effluent from the Buffer Tank and discharging to the Filtration and Reverse Osmosis Systems for further treatment one (1) granulated activated carbon (GAC) tank containing approximately 02 cubic metres of GAC including associated piping and valving to bring the GAC Unit on-line as needed to treat the bag filter effluent prior to discharge to the Buffer Tank a process to add sodium hydrogen sulphite solution (30 to 60 weightvolume) to the First Stage Filtrate Collection Tank to react with elevated Total Residual Chlorine concentrations in the ALW Collection SystemFILTRATION SYSTEM one (1) backwashable filtration system consisting of two (2) filter units in parallel and a 15 cubic metre Filter Backwash Slurry (FBS) Tank with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the Reverse Osmosis System (ROS) or to the Discharge System with automatic backwash of the isolated filter unit to the FBS Tank piping and pumps to transfer batch quantities of the high gamma ray active waste from the FBS Tank to the Evaporator Solidification System (ESS) Feed Tanks one (1) disposable filter system consisting of two (2) filter units with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the ROS or to the Discharge System

piping and chemical injection pumps to meter flocculant to the inlet of the Backwashable Filtration System (BFS)Disposable Filtration System (DFS) piping and injection pumps to meter pre-coat material to pre-coat the BFS filter elements whenever the BFS is online one (1) ion exchange column containing mixed bed resin with associated piping and valving to bring it online to treat BFSDFS filtrate as a replacement for the ROS whenever the ROS is off-lineREVERSE OSMOSIS SYSTEM (ROS) one (1) Reverse Osmosis System (ROS) including four (4) sub-systems - Primary Reverse Osmosis 1 Crystallizer Reverse Osmosis 2 ReactionDecant Tanks and Crystallizer Ultrafiltration consisting ofReverse Osmosis 1 one (1) 135 cubic metre RO1 Feed Tank two (2) feed pumps each rated at approximately 270 Litres per minute two (2) process booster pumps each rated at approximately 380 Litres per minute feeding two RO sets of five (5) parallel membrane pressure vessels with discharge from the RO Units to a common Permeate Verification Tank with two (2) Permeate Transfer Pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Filters in the Discharge System a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other reagent that can safely degrade hydrazine to the Permeate Verification Tank to react with elevated hydrazine concentrations in the ALW Discharge System (ie tanks) If the Discharge System does not meet the discharge release specifications then the tank contents are returned to the Collection System for reprocessingCrystallizer Reverse Osmosis 2 piping to convey the reject concentrate from the Primary RO1 Units the recycled concentrate reject from the Crystallizer RO2 Units and the permeate from the Ultrafiltration Unit to the RO2 Feed Tank with 2 Feed Pumps each rated at approximately 95 Litres per minute feeding two sets of five (5) parallel membrane pressure vessels with permeate recycled to the RO1 Feed Tank and the concentrate reject recycled to the RO2 Feed Tank or conveyed to the ReactionDecant SystemReactionDecant two (2) Reaction Tanks each with a volume of approximately 2 cubic metres including caustic addition to produce a precipitate with the supernatant solution from either Tank conveyed to the Ultrafiltration (UF) Crystallizer Feed Tanks and the high solids effluent to the Evaporation and Solidification System Crystallizer Ultrafiltration (UF) two (2) UF feed pumps each rated at approximately 13 Litres per second feeding two (2) Crystallizer UF Units each with eight (8) membrane vessels with provision for circulating the concentrate reject via a heat exchanger for each UF Unit to the Feed Tanks or to discharge to the RO Storage Tank for feed to the EvaporationSolidification System with the permeate either returned to the UF Feed Tanks or returned to the RO2 Feed Tank

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

collection and transmission facilities for directing continuous and intermittent blowdown and intermittent blowdown during lay-up from each of the eight (8) boilers four (4) preheaters and two (2) steam drums associated with each of the four (4) Reactor Unit boiler steam and feedwater systems via 38 and 102 millimetre diameter piping and headers to the CWDD and hence to Lake Huron one (1) common header for Building Heating Steam supplied from one of the Reactor Units steam turbines or from the Bruce Steam Plant or from Off Site Vendor with condensate flow to the Condensate Return Tank in each Unit two (2) Condensate Return Tank Pumps each rated at 35 Litres per second to discharge the collected condensate to the CWDD Condensate when needed to eliminate personnel and equipment safety issues is directed to the CWDD via alternate inactive drainage pathways piping to direct boiler operational and shutdownstandby intermittent blowdown and maintenance shutdown drainage from the back-up electric boiler to the CWDD two (2) 51 millimetre diameter rubber steam hoses connected to the steam supply at the Old Water Treatment Plant Building to continuously inject steam to the Common Service Water (CSW I) Intake upstream of the travelling screens as required during cold weather with eventual discharge as part of the CSW I discharge to the CWDD and hence to Lake Huron piping to allow the drainage of process effluent from specific equipment in the boiler and feedwater system to the CWDDD ACTIVE (RADIOACTIVE) LIQUID WASTE (ALW)A system for the collection transmission and treatment of radioactive wastes with discharge of the treated aqueous wastes via MISA Control Point 0100 to the CWDD and hence to Lake Huron includingFEED COLLECTION SYSTEM four (4) 136 cubic metre Collection Tanks each with a pump and a recirculation line with discharge via a common header to the pre-treatment system including a provision for emergency discharge directly to the CWDD through a shut-off valve which is normally locked a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other effective reagent that can safely degrade hydrazine to the Collection Tanks via Active Drainage Sump 5 to react with elevated hydrazine concentrations in the ALW Collection System (ie tanks)PRE-TREATMENT SYSTEM a skid mounted automatic two-stage batch pre-treatment system designed for a maximum flow of approximately 11 cubic metres per hour consisting of the following equipment in sequence one (1) Equalization Tank with a volume of approximately 76 cubic metres receiving effluent from any of the collection tanks two (2) 100 duty Equalization Transfer Pumps each rated at approximately 950 Litres per minute taking effluent from the Equalization Tank and discharging to the First Stage Reaction Tank

one (1) 45 cubic metre First Stage Reaction Tank with high-speed agitation and provision for direct addition of clay powder flocculant to a concentration range of approximately 01 to 4 grams per Litre and draining to the First Stage Band Filter one (1) 30 micron First Stage Band Filter with dewatering press rollers discharging filtrate to the First Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) First Stage Filtrate Collection Tank with a volume of 45 cubic metres receiving effluent from the First Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at 870 Litres per minute taking effluent from the First Stage Filtrate Collection Tank and discharging to the Second Stage Reaction Tank one (1) 45 cubic metre Second Stage Reaction Tank with high-speed agitation and facilities for the addition of flocculant as a liquid suspension or in granular form to provide a concentration in the range of 20 to 100 milligrams per Litre one (1) 30 micron Second Stage Band Filter with dewatering press rollers discharging to the Second Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) 45 cubic metre Second Stage Filtrate Collection Tank receiving effluent from the Second Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at approximately 870 Litres per minute taking effluent from the Second Stage Filtrate Collection Tank and discharging through one of two (2) bag filters rated at 5 microns to a 76 cubic metre Buffer Tank two (2) 100 duty Buffer Tank Discharge Pumps each rated at approximately 380 Litres per minute taking effluent from the Buffer Tank and discharging to the Filtration and Reverse Osmosis Systems for further treatment one (1) granulated activated carbon (GAC) tank containing approximately 02 cubic metres of GAC including associated piping and valving to bring the GAC Unit on-line as needed to treat the bag filter effluent prior to discharge to the Buffer Tank a process to add sodium hydrogen sulphite solution (30 to 60 weightvolume) to the First Stage Filtrate Collection Tank to react with elevated Total Residual Chlorine concentrations in the ALW Collection SystemFILTRATION SYSTEM one (1) backwashable filtration system consisting of two (2) filter units in parallel and a 15 cubic metre Filter Backwash Slurry (FBS) Tank with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the Reverse Osmosis System (ROS) or to the Discharge System with automatic backwash of the isolated filter unit to the FBS Tank piping and pumps to transfer batch quantities of the high gamma ray active waste from the FBS Tank to the Evaporator Solidification System (ESS) Feed Tanks one (1) disposable filter system consisting of two (2) filter units with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the ROS or to the Discharge System

piping and chemical injection pumps to meter flocculant to the inlet of the Backwashable Filtration System (BFS)Disposable Filtration System (DFS) piping and injection pumps to meter pre-coat material to pre-coat the BFS filter elements whenever the BFS is online one (1) ion exchange column containing mixed bed resin with associated piping and valving to bring it online to treat BFSDFS filtrate as a replacement for the ROS whenever the ROS is off-lineREVERSE OSMOSIS SYSTEM (ROS) one (1) Reverse Osmosis System (ROS) including four (4) sub-systems - Primary Reverse Osmosis 1 Crystallizer Reverse Osmosis 2 ReactionDecant Tanks and Crystallizer Ultrafiltration consisting ofReverse Osmosis 1 one (1) 135 cubic metre RO1 Feed Tank two (2) feed pumps each rated at approximately 270 Litres per minute two (2) process booster pumps each rated at approximately 380 Litres per minute feeding two RO sets of five (5) parallel membrane pressure vessels with discharge from the RO Units to a common Permeate Verification Tank with two (2) Permeate Transfer Pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Filters in the Discharge System a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other reagent that can safely degrade hydrazine to the Permeate Verification Tank to react with elevated hydrazine concentrations in the ALW Discharge System (ie tanks) If the Discharge System does not meet the discharge release specifications then the tank contents are returned to the Collection System for reprocessingCrystallizer Reverse Osmosis 2 piping to convey the reject concentrate from the Primary RO1 Units the recycled concentrate reject from the Crystallizer RO2 Units and the permeate from the Ultrafiltration Unit to the RO2 Feed Tank with 2 Feed Pumps each rated at approximately 95 Litres per minute feeding two sets of five (5) parallel membrane pressure vessels with permeate recycled to the RO1 Feed Tank and the concentrate reject recycled to the RO2 Feed Tank or conveyed to the ReactionDecant SystemReactionDecant two (2) Reaction Tanks each with a volume of approximately 2 cubic metres including caustic addition to produce a precipitate with the supernatant solution from either Tank conveyed to the Ultrafiltration (UF) Crystallizer Feed Tanks and the high solids effluent to the Evaporation and Solidification System Crystallizer Ultrafiltration (UF) two (2) UF feed pumps each rated at approximately 13 Litres per second feeding two (2) Crystallizer UF Units each with eight (8) membrane vessels with provision for circulating the concentrate reject via a heat exchanger for each UF Unit to the Feed Tanks or to discharge to the RO Storage Tank for feed to the EvaporationSolidification System with the permeate either returned to the UF Feed Tanks or returned to the RO2 Feed Tank

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

one (1) 45 cubic metre First Stage Reaction Tank with high-speed agitation and provision for direct addition of clay powder flocculant to a concentration range of approximately 01 to 4 grams per Litre and draining to the First Stage Band Filter one (1) 30 micron First Stage Band Filter with dewatering press rollers discharging filtrate to the First Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) First Stage Filtrate Collection Tank with a volume of 45 cubic metres receiving effluent from the First Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at 870 Litres per minute taking effluent from the First Stage Filtrate Collection Tank and discharging to the Second Stage Reaction Tank one (1) 45 cubic metre Second Stage Reaction Tank with high-speed agitation and facilities for the addition of flocculant as a liquid suspension or in granular form to provide a concentration in the range of 20 to 100 milligrams per Litre one (1) 30 micron Second Stage Band Filter with dewatering press rollers discharging to the Second Stage Filtrate Collection Tank and solids to collection drums for immobilization and approved storage one (1) 45 cubic metre Second Stage Filtrate Collection Tank receiving effluent from the Second Stage Band Filter two (2) 100 duty Filtrate Discharge Pumps each rated at approximately 870 Litres per minute taking effluent from the Second Stage Filtrate Collection Tank and discharging through one of two (2) bag filters rated at 5 microns to a 76 cubic metre Buffer Tank two (2) 100 duty Buffer Tank Discharge Pumps each rated at approximately 380 Litres per minute taking effluent from the Buffer Tank and discharging to the Filtration and Reverse Osmosis Systems for further treatment one (1) granulated activated carbon (GAC) tank containing approximately 02 cubic metres of GAC including associated piping and valving to bring the GAC Unit on-line as needed to treat the bag filter effluent prior to discharge to the Buffer Tank a process to add sodium hydrogen sulphite solution (30 to 60 weightvolume) to the First Stage Filtrate Collection Tank to react with elevated Total Residual Chlorine concentrations in the ALW Collection SystemFILTRATION SYSTEM one (1) backwashable filtration system consisting of two (2) filter units in parallel and a 15 cubic metre Filter Backwash Slurry (FBS) Tank with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the Reverse Osmosis System (ROS) or to the Discharge System with automatic backwash of the isolated filter unit to the FBS Tank piping and pumps to transfer batch quantities of the high gamma ray active waste from the FBS Tank to the Evaporator Solidification System (ESS) Feed Tanks one (1) disposable filter system consisting of two (2) filter units with each unit having a nominal filtration rate of 63 litres per second with discharge of filtrate to the ROS or to the Discharge System

piping and chemical injection pumps to meter flocculant to the inlet of the Backwashable Filtration System (BFS)Disposable Filtration System (DFS) piping and injection pumps to meter pre-coat material to pre-coat the BFS filter elements whenever the BFS is online one (1) ion exchange column containing mixed bed resin with associated piping and valving to bring it online to treat BFSDFS filtrate as a replacement for the ROS whenever the ROS is off-lineREVERSE OSMOSIS SYSTEM (ROS) one (1) Reverse Osmosis System (ROS) including four (4) sub-systems - Primary Reverse Osmosis 1 Crystallizer Reverse Osmosis 2 ReactionDecant Tanks and Crystallizer Ultrafiltration consisting ofReverse Osmosis 1 one (1) 135 cubic metre RO1 Feed Tank two (2) feed pumps each rated at approximately 270 Litres per minute two (2) process booster pumps each rated at approximately 380 Litres per minute feeding two RO sets of five (5) parallel membrane pressure vessels with discharge from the RO Units to a common Permeate Verification Tank with two (2) Permeate Transfer Pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Filters in the Discharge System a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other reagent that can safely degrade hydrazine to the Permeate Verification Tank to react with elevated hydrazine concentrations in the ALW Discharge System (ie tanks) If the Discharge System does not meet the discharge release specifications then the tank contents are returned to the Collection System for reprocessingCrystallizer Reverse Osmosis 2 piping to convey the reject concentrate from the Primary RO1 Units the recycled concentrate reject from the Crystallizer RO2 Units and the permeate from the Ultrafiltration Unit to the RO2 Feed Tank with 2 Feed Pumps each rated at approximately 95 Litres per minute feeding two sets of five (5) parallel membrane pressure vessels with permeate recycled to the RO1 Feed Tank and the concentrate reject recycled to the RO2 Feed Tank or conveyed to the ReactionDecant SystemReactionDecant two (2) Reaction Tanks each with a volume of approximately 2 cubic metres including caustic addition to produce a precipitate with the supernatant solution from either Tank conveyed to the Ultrafiltration (UF) Crystallizer Feed Tanks and the high solids effluent to the Evaporation and Solidification System Crystallizer Ultrafiltration (UF) two (2) UF feed pumps each rated at approximately 13 Litres per second feeding two (2) Crystallizer UF Units each with eight (8) membrane vessels with provision for circulating the concentrate reject via a heat exchanger for each UF Unit to the Feed Tanks or to discharge to the RO Storage Tank for feed to the EvaporationSolidification System with the permeate either returned to the UF Feed Tanks or returned to the RO2 Feed Tank

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

piping and chemical injection pumps to meter flocculant to the inlet of the Backwashable Filtration System (BFS)Disposable Filtration System (DFS) piping and injection pumps to meter pre-coat material to pre-coat the BFS filter elements whenever the BFS is online one (1) ion exchange column containing mixed bed resin with associated piping and valving to bring it online to treat BFSDFS filtrate as a replacement for the ROS whenever the ROS is off-lineREVERSE OSMOSIS SYSTEM (ROS) one (1) Reverse Osmosis System (ROS) including four (4) sub-systems - Primary Reverse Osmosis 1 Crystallizer Reverse Osmosis 2 ReactionDecant Tanks and Crystallizer Ultrafiltration consisting ofReverse Osmosis 1 one (1) 135 cubic metre RO1 Feed Tank two (2) feed pumps each rated at approximately 270 Litres per minute two (2) process booster pumps each rated at approximately 380 Litres per minute feeding two RO sets of five (5) parallel membrane pressure vessels with discharge from the RO Units to a common Permeate Verification Tank with two (2) Permeate Transfer Pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Filters in the Discharge System a process to add sodium hypochlorite solution (12 to 14 weightvolume) or other reagent that can safely degrade hydrazine to the Permeate Verification Tank to react with elevated hydrazine concentrations in the ALW Discharge System (ie tanks) If the Discharge System does not meet the discharge release specifications then the tank contents are returned to the Collection System for reprocessingCrystallizer Reverse Osmosis 2 piping to convey the reject concentrate from the Primary RO1 Units the recycled concentrate reject from the Crystallizer RO2 Units and the permeate from the Ultrafiltration Unit to the RO2 Feed Tank with 2 Feed Pumps each rated at approximately 95 Litres per minute feeding two sets of five (5) parallel membrane pressure vessels with permeate recycled to the RO1 Feed Tank and the concentrate reject recycled to the RO2 Feed Tank or conveyed to the ReactionDecant SystemReactionDecant two (2) Reaction Tanks each with a volume of approximately 2 cubic metres including caustic addition to produce a precipitate with the supernatant solution from either Tank conveyed to the Ultrafiltration (UF) Crystallizer Feed Tanks and the high solids effluent to the Evaporation and Solidification System Crystallizer Ultrafiltration (UF) two (2) UF feed pumps each rated at approximately 13 Litres per second feeding two (2) Crystallizer UF Units each with eight (8) membrane vessels with provision for circulating the concentrate reject via a heat exchanger for each UF Unit to the Feed Tanks or to discharge to the RO Storage Tank for feed to the EvaporationSolidification System with the permeate either returned to the UF Feed Tanks or returned to the RO2 Feed Tank

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

skid-mounted pH adjustment equipment including day tanks for sulphuric acid and caustic and pumps to convey sulphuric acid to the ROS and UF Feed Tanks and caustic to the Reaction Tanks as required piping and two (2) metering pump to allow the injection of polyacrylic scale inhibitor from the anti-scalant feed tank into the discharge of the RO1 feed pumps three (3) clean-in-place systems one each for the RO1 RO2 and UF systems with a tank and two dedicated pumps for the RO1 system a tank and the RO2 feed pumps for the RO2 system and the UF Tank for the UF membrane in situ cleaning with all cleaning wastes discharged to the Evaporation-Solidification SystemEVAPORATION-SOLIDIFICATION SYSTEM (ESS) an Evaporation-Solidification System (ESS) processing backwash from the BFS retentate from the ROS and drummed high radioactive wastes from other on-site sources on a batch basis and consisting of two (2) 17 cubic metre Evaporator Feed Tanks with in-tank agitation skid mounted acid and caustic storage tanks and metering pumps two (2) recirculation pumps and two (2) ESS Evaporator Feed Pumps rated at approximately 120 Litres per minute to convey the contents of one (1) Feed Tank at a time to the Evaporator one (1) thin film Evaporator rated at 200 kilograms per hour concurrently fed waste and bitumen emulsion from a heated Bitumen Storage Tank with the combined solids exiting the bottom of the evaporator into a drum for radioactive waste storage with the distillate condensed in the ESS Condenser and conveyed to the Distillate Polishing System a cleaning system for the evaporator with a gravity feed of hydrocarbon cleaning solution from an elevated tank with the solution drained into a collection tank and pumped back to the storage tankDISTILLATE POLISHING SYSTEM one (1) oilwater separator to remove free oil from the distillate with the water phase fed to a Distillate Holding Tank with two pumps rated at approximately 83 Litres per minute feeding a centrifuge to remove additional oil with the effluent from the centrifuge treated with hydrogen peroxide and passed through a UV Oxidation Unit to the Permeate Verification Tank for eventual discharge via the Neutralizing Filters to the Discharge System or the water can be discharged to active drainage a back-up polishing system when the centrifuge and the UV System are down to treat the effluent from the ESS Distillate Holding Tank through a coalescing filter and two (2) granulated activated carbon filters in parallel with the polished effluent conveyed to the Permeate Verification Tank for eventual discharge via the Neutralizing Filter System to the Discharge TanksDISCHARGE SYSTEM one (1) skid-mounted Neutralizing Filter System consisting of three (3) vessels each containing layers of granular calcium carbonate supported by layers of sand garnet and gravel to provide pH adjustment and filtration for the ROS permeate prior to collection in the Discharge Tanks two (2) Discharge Tanks for treated waste each with a capacity of 136 cubic metres

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

equipped with a pump and piping to allow recirculation with a discharge filtration system of a particulate filter rated at 05 to 5 microns and a granulated activated carbon vessel in series to be used as needed with final discharge at an average flow of 126 Litres per second via MISA Control Point 0100 to the CWDD and thus Lake HuronAQUEOUS WASTE PROCESSING SYSTEM one (1) portable carbon steel waste storage tank having a capacity of 800 Litres receiving batch aqueous waste with a total volume of approximately 125 cubic metres per annum having a skimmer to remove surface debris and an aqueous waste transfer pump rated at approximately 055 Litres per second to discharge the aqueous layer to a waste stream filter one (1) waste stream filter rated at approximately 10 Litres per second containing high efficiency filter media rated at 35 microns with filtrate conveyed to the Aqueous Waste Processing Machine one (1) Aqueous Waste Processing Machine consisting of one (1) carbon steel waste mixing tank having a capacity of about 08 cubic metres equipped with a high speed mixing turbine for mixing of flocculant consisting of a mixture of high molecular weight cationic polymers organic acids and bases activated montmorillonite with oxidizing agents potassium permanganate andor hydrogen peroxide at a target pH of 70 as adjusted by soda ash or sulphuric acid draining to the band filter one (1) band filter to separate solids discharging the filtrate to the filtered waste collection tank and the dried sludge layer and the filter media into a collection drum which is further dried by an external heater and sent for approved storage one (1) filtered waste storage tank having a capacity of about 08 cubic metres discharging to the Effluent Polishing System by means of a processed waste transfer pump rated at approximately 055 Litres per second one (1) Effluent Polishing System consisting of one (1) processed stream bag filter one (1) carbon filter unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel filled with activated carbon with disposal of the spent activated carbon as solid radioactive waste one (1) ion exchange unit consisting of one (1) 205 Litre open top carbon steel drum housing a 175 Litre stainless steel inner vessel containing ion exchange resin and discharging the processed water to the ALWS for further treatment with disposal of spent resin as solid radioactive wasteGREY WATER PROCESSING SYSTEM piping and a sewer system for collecting approximately 15 cubic metres per day of laundry wastewater from a 360 000 kilogram per year capacity facility for cleaning plastic and rubber protective clothing one (1) Grey Water Processing System with a maximum design flow of approximately 35 cubic metres per hour consisting of the following equipment two (2) Wastewater Holding Tanks each with a volume of 114 cubic metres receiving effluent from the plastic suit washers

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

one (1) 5 micron bag filter for lint and coarse particle removal one (1) Wastewater Tank with a volume of 950 Litres for collecting the filtered wastewater three (3) separate addition systems consisting of tanks and metering pumps each rated at approximately 110 Litres per day for the addition of a coagulant polymer solution 10 sulphuric acid solution and flocculant solution respectively to the Dissolved Air Flotation Tank feed upstream of the serpentine mixer one (1) Dissolved Air Flotation Tank with a volume of approximately 11 cubic metres and a 05 metre sidewall depth with solids skimmed to the 210 Litre Slurry Holding Tank discharging to the 006 cubic metre plate-type filter press for dewatering with the underflow discharged to the 230 Litre Aqueous Discharge Tank and pumpout to the Clean Water Tank one (1) Clean Water Tank with a volume of approximately 57 cubic metres receiving the Aqueous Discharge Tank effluent and filtrate from the filter press with two (2) recirculating streams and a bleed-off discharge stream piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through a venturi-type ozone injector and a cyclone-type oxygen stripper and to return the stream to the Clean Water Tank piping and a pump rated at approximately 67 cubic metres per hour to circulate a portion of the Clean Water Tank contents through an Electro-Coagulation Unit and a backwashable vertical element filter with a polypropylene filter cloth and diatomite powder precoat and to return the stream to the Clean Water Tank with the filter backwash being returned to the Wastewater Tank piping and a pump rated at approximately 67 cubic metres per hour to feed the Clean Water Tank contents to a polypropylene media Bag Filter and a two (2) lamp Ultraviolet Oxidation Unit rated at 003 watts per square centimetre with discharge to the Active Liquid Waste (ALW) System Collection Tanks for further treatmentSMALL PARTS WASHER one (1) stainless steel small parts washer in the Fuelling Machine Maintenance Area discharging rinse water and overflow to the ALW System for treatment with recycled water in the Wash Water Storage Tank emptied once a week and discharged to the ALW System for treatment or drained to drums for processing if radiological limits are exceededE INACTIVE (NON-RADIOACTIVE) DRAINAGE a system for the collection and discharge of non-radioactive effluent via the following sumps to the Intake Channel the CWDD Yard Drainage or to the ALW System and ultimately to Lake Huron including by receiverDischarging to the Intake Channel four (4) Pumphouse Sumps one in each of the Reactor Unit 1-4 Pumphouses collecting equipment drainage with a single pump rated at approximately 170 Litres per minute at each Sump discharging via MISA Control Points 2100 2200 2300 and 2400 respectively to the Intake Channel one (1) Old Water Treatment Building Sump located in the basement collecting

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging via MISA Control Point 2000 to the Intake Channelmiddot One (1) ultrafiltration skid for the purpose of pre-filtering raw influent lake water with discharge by gravity overflow via a hose to the Common Service Water intake pump wellDischarging to the Cooling Water Discharge Duct (CWDD) one (1) New Water Treatment Building Sump located in the basement collecting equipment drainage with two (2) pumps each rated at approximately 190 Litres per minute discharging to the Neutralizing Sump which in turn discharges via MISA Control Point 1400 to the CWDD four (4) Turbine Hall Sumps one in each of the four Reactor Unit Turbine Halls collecting floor and utility drainage including condensate extraction pump and condenser pit drainage with each Sump equipped with two pumps each rated at approximately 1900 Litres per minute to discharge either to the ALW System and via MISA Control Point 0100 to the CWDD or via MISA Control Points 0200 0300 0400 and 0500 to the CWDD four (4) Reactor Auxiliary Bay Sumps one in each of the four Reactor Unit Auxiliary Bays collecting foundation drainage with each Sump equipped with one (1) pump rated at approximately 380 Litres per minute to discharge the drainage to the CWDD with the drainage systems interconnected so that any one Sump pump can be used to pump out the foundation drainage in case of pump failure one (1) Service Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDD with provision to discharge via the Unit 2 or Unit 3 foundation drainage system in case of pump failure one(1) Ancillary Services Building Sump collecting foundation drainage with discharge via a single pump rated at approximately 380 Litres per minute to the CWDDDischarging to Yard Drainage or the ALW System one (1) Accumulator Building Sump with two pumps each rated at approximately 570 Litres per minute collecting floor drainage with the collected wastewater being sampled for tritium prior to discharge either to the Yard Drainage System via MISA Control Point 2500 or to the ALWS for treatmentDischarging to the ALW System one (1) Vacuum Building Sump with a single pump rated at approximately 150 Litres per minute collecting floor and equipment drainage with discharge to the Service Tunnel Sump one (1) Service Tunnel Sump located at the entrance to the Service Tunnel with a single pump rated at approximately 380 Litres per minute also collecting area drainage with the collected wastewater discharged to the ALW System or to the CWDD if the Station tritium concentration criterion is metDischarging to Yard Drainage one (1) Emergency Coolant Injection (ECI) Water Storage Tank Building Sump with a single pump rated at approximately 570 Litres per minute collecting building water with

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

discharge to the Yard Drainage System to the northHeating Ventilation and Air Conditioning (HVAC) Unit Maintenance Drainage and Spray Wash Systems piping to drain for maintenance purposes water containing corrosion inhibitors and biocides from normally closed loops supplying chilled andor hot water to HVAC Units and to some process units with discharge to the Inactive Drainage System and ultimately to the CWDDStator Conductor Cooling piping to drain for maintenance purposes water which may contain traces of copper from normally closed cooling systems for the stator conductors in each of the four (4) Station generators with discharge to the Inactive Drainage System and ultimately to the CWDDF YARD DRAINAGE a network of open collection ditches dyked areas around outdoor equipment underground conduits catch basins manholes and outlet works for the collection and transmission of storm water to Lake Huron via multiple effluent pointsall in accordance with the submitted supporting documents listed in Schedule A

For the purpose of this environmental compliance approval the following definitions apply

Approval means this environmental compliance approval and any schedules attached to it and the application

CWDD means Cooling Water Discharge Duct

Composite sample is defined in Ministry publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amendedDirector means a person appointed by the Minister pursuant to section 5 of the EPA for the purposes of Part II1 of the EPA

District Manager means the District Manager of the appropriate local district office of the Ministry where the Works are geographically located

Equivalent equipment means a substituted equipment or like-for-like equipment that meets the required quality and performance standards of a named equipment

Feedwater discharge means an effluent stream from the boiler steam and feedwater systems including but not limited to the boiler blowdown pathwayGrab Sample is defined in Section 311 of the Ministry publication Protocol For the Sampling and Analysis of IndustrialMunicipal Waste Water dated January 1999 and as amended

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

mgL means milligrams per LitreMinistry means the ministry of the government of Ontario responsible for the EPA and OWRA and includes all officials employees or other persons acting on its behalf

Process material means any raw material product by-product intermediate product oil solvent waste material or any other chemical used in the works approved by this Approval

Provincial Water Quality Objectives (PWQOs) means numerical and narrative ambient surface water quality criteria defined in Table 1- General Narrative Objectives and Table 2 - Table of PWQOs and Interim PWQOs provided in MOE publication entitled Water Management Policies Guidelines Provincial Water Quality Objectives of the Ministry of Environment and Energy dated July 1994 as amendedWorks means the sewage works described in the Owners application and this Approval and the modifications made under Limited Operational FlexibilityThe following symbols are abbreviations for the monitoring frequencies indicated in the tables C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at least 3 hours between successive samples with measurement performed immediately in the field for each sample D means daily ie one sample over a 24 hour period5DW means one sample per day from Monday to Friday ie five days per week not including statutory holidays during the chlorination season with analysis by amperometric titration M means monthly ie one sample in a calendar month with at least 15 days between successive samples

You are hereby notified that this environmental compliance approval is issued to you subject to the terms and conditions outlined below

TERMS AND CONDITIONS

1 GENERAL CONDITION(1) The Owner shall ensure that any person authorized to carry out work on or operate any aspect of the Works is notified of this Approval and the conditions herein and shall take all reasonable measures to ensure any such person complies with the same

(2) Except as otherwise provided by these conditions the Owner shall design build install operate and maintain the Works in accordance with the description given in this Approval and the application for approval of the Works

(3) Where there is a conflict between a provision of any document in the schedule

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

referred to in this Approval and the conditions of this Approval the Conditions in this Approval shall take precedence and where there is a conflict between the documents in the schedule the document bearing the most recent date shall prevail

(4) Where there is a conflict between the documents listed in the Schedule A and the application the application shall take precedence unless it is clear that the purpose of the document was to amend the application

(5) The Conditions of this Approval are severable If any Condition of this Approval or the application of any requirement of this Approval to any circumstance is held invalid or unenforceable the application of such condition to other circumstances and the remainder of this Approval shall not be affected thereby

2 LIMITS OF OPERATIONAL FLEXIBILITY

(1) The Owner may make modifications to the Works without seeking approval for such modifications under Section 53 of the Ontario Water Resources Act where the modifications will not

(a) change the treatment process or change or relocate the method of sewage transmission such that the change would result in the effluent exceeding the Ontario Provincial Water Quality Objectives (PWQOs) or being in non-compliance with the Effluent Requirements in this Approval or with Regulation 215 as amended or(b) change the rated hydraulic capacity of the Works or(c) add a new discharge stream or an alternate discharge point or(d) significantly jeopardize the designed reliability or built-in redundancy of the Works or(e) affect compliance monitoring requirements or the ability to take samples at the established locations identified in this Approval

(2) The Owner shall notify the District Manager of any modifications to the Works under Subsection (1) in accordance with the requirements of Section 7(3)3 OPERATIONS (1) The Owner shall ensure that the Works and related equipment and appurtenances which are installed or used to achieve compliance with this Approval are properly operated and maintained(2) The Owner shall use best effort to immediately identify and cleanup all losses of process material from the Works(3) The Owner shall upon identification of process material loss take appropriate action to prevent the further occurrence of such loss(4) In furtherance of but without limiting the generality of the obligation imposed by Subsection (1) the Owner shall ensure that equipment and material for the

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

containment cleanup and disposal of process materials are kept on hand and in good repair for immediate use in the event of

(a) loss of process material from the Works or

(b) a spill within the meaning of Part X of the Environmental Protection Act

(5) In furtherance of but without limiting the generality of the obligation imposed by Subsections (1) to (4) above the Owner shall prepare and keep current operations and maintenance manuals and procedures for use in the operation of the Works(6) The Owner shall ensure that the manuals and procedures include

(a) operating procedures for routine operation of the Works

(b) inspection programs including frequency of inspection for the Works and the methods or tests employed to detect when maintenance is necessary

(c) repair and maintenance programs including the frequency of repair and maintenance for the Works

(d) a spill prevention control and countermeasures plan

(e) procedures for responding to concerns from the public

(7) The Owner shall maintain the manuals and procedures current and at the location of the Works for as long as they are in operation and shall make the documents available for inspection by Ministry staff upon request 4 EFFLUENT OBJECTIVESCOOLING WATER(1) The Owner shall use best efforts to design construct and operate the Works with the objective that

(a) the Total Residual Chlorine (TRC) concentration in the Cooling Water Discharge Duct (CWDD) prior to entering Lake Huron does not exceed 0002 mgL

(b) the chlorination of the Low Pressure Service Water (LPSW) the Common Service Water (CSW) the Fire Water (FW) and the Condenser Cooling Water (CCW) Screenwash Sprays is performed in such a manner as to maintain a TRC concentration not exceeding 20 mgL in the

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

respective water systems

(c) the concentration of boron in the CWDD prior to entering Lake Huron does not exceed 023 mgL

(d) the concentration of total phosphorus in the CWDD prior to entering Lake Huron does not exceed 10 mgL

(e) the loss of sponge balls used to clean condenser tubes to the CWDD is kept to a minimum

(2) The Owner may use for purposes of periodic condenser leak detection tests and consequently discharge to the CWDD sulphur hexafluoride (SF6)CHLORINATIONDECHLORINATION (3) The Owner may perform seasonal chlorination of the LPSW the CSW the FW and the CCW Screenwash Sprays in up to two (2) chlorination campaigns of thirty (30) consecutive days each of up to 24 hours per day beginning on the day following seven consecutive days of daily average intake water temperature readings above 12 degrees Celsius or when mussel veligers are present in the forebay and ending no later than 30 days following seven consecutive days where the daily average intake water temperature reading drops to twelve degrees Celsius(4) The Owner shall dechlorinate the chlorinated systems described in Subsection (3) as needed using sodium metabisulphite solution to meet the requirements for TRC in the CWDD listed in Table 2 under Condition 5(7) provided that the dechlorination is only operated concurrently with the specific system chlorinationSTEAM AND FEEDWATER(5) The Owner shall use best efforts to design construct and operate the Works with the objective that the discharge rates to the CWDD from the Reactor Unit boilers and associated systems and their duration and flow as set out in Table 1 are not exceeded for the Boiler operating conditions and the types of flows shown in the Table and provided that the requirements under Condition 5 Subsection (10) are also met

Table 1 - Allowable Effluent Discharge Rates(Boiler and Associated Systems per Reactor Unit)

Reactor Unit Condition

BoilerSub-Condition

Maximum Effluent Flowrate

(Litresminute)

Type of Flow

Typical Unit Discharge Duration

Operating Normal(High Power)

600 Continuous Ongoing

1800 Intermittent OngoingShutdownStart-Transient 2100 Intermittent 96 hoursevent

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

upUpset

Shutdown Outage 900 Intermittent 120 daysevent Lay-up 900 Intermittent Ongoing(6) Notwithstanding any other Condition in this Approval the Owner shall ensure that the effluent from the Works is essentially free of floating and settleable solids and does not contain oil or any other substance in amounts sufficient to create a visible film sheen foam or discolouration on the receiving waters(7) The Owner shall use best efforts to design construct and operate the Works with the objective that the concentrations of the effluent parameters named in Table 2 are not exceeded in the effluent from the Domestic Water Pre-Filtration reject and backpulse

Table 2 - Domestic Water Pre-Filtration Reject and Backpulse Effluent Objectives and Monitoring (at the overflow form the pre-filtration skid)

Effluent Parameter

ConcentrationObjective

(mgL)

Monitoring Frequency

Sample Type

Total Suspended Solids

- M Grab

(8) The Owner may perform the following drainage activity as needed to facilitate required Vacuum Building (VB) Inspections provided that the requirements of Subsections (2) (3) and (4) are met

(a) up to approximately 1000 cubic metres of stored water from the Emergency Water Storage Tank (EWST) via the VB Recovery Floor using the two (2) in-place Emergency Water Storage Pumps (each rated at approximately 15 Litres per second) and piping to the CCW Duct but not including the last 25-50 millimetre residual layer of water on the floor which is to be drained to the Active Liquid Waste System as described below

(b) up to approximately 500 cubic metres of stored water from the Lower Seal Tank in the VB via the Emergency Water Storage Pumps and piping to the EWST or to the CCW Duct except for the last 25-50 millimetre residual layer of water in the Tank which is to be drained to the Active Liquid Waste System as described below

(c) up to approximately 2500 cubic metres of common service water from the temporary filling of the 18 Vacuum Pipes at the VB using the in-place Emergency Water Storage Pumps and piping to the CCW Duct

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

(d) the residual layer of water from the VB Recovery Floor by gravity via a temporary hose connection from the Recovery Floor Drain to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(e) the residual layer of water from the Lower Seal Tank via a temporary sump pump with a discharge hose to Sump P9 which is pumped to the Active Liquid Waste Treatment System

(f) a contingency volume if needed of up to approximately 11000 cubic metres of stored water from the EWST by gravity via four (4) temporary drain lines connected to the Tank drainage system to the CWDD

(9) The Owner shall ensure that a minimum of 2 CCW Pumps are on-line at all times during any of the drainage activity described under Subsection (8)(10) The Owner shall collect a set of grab samples at the start the middle and at the end of each of the drainage activities described under Subsections 8(a) (b) (c) and (f) and shall analyze the samples for Total Suspended Solids Iron Hydrazine and Ammonia(11) The Owner shall use best efforts to ensure that the following concentration objectives are not exceeded for any of the drained water prior to discharge to the CWDD

Table 21 - Concentration Objectives for the EWST Effluent Effluent Parameters Concentration Objective (mgL)

Total Suspended Solids 25Iron 03Hydrazine 01Ammonia 01

(12) The Owner shall include in all annual performance reports submitted in accordance with Condition 7 a summary of the efforts made and results achieved under this Condition5 EFFLUENT DISCHARGE LIMITS AND MONITORING REQUIREMENTSCOMPLIANCE - GENERAL(1) Notwithstanding Condition 4 the Owner shall design construct and operate the Works such that the concentrations of the effluent parameters named in the following Tables in this Section are not exceeded in the respective effluent streams named(2) Unless otherwise specified below for the purposes of determining compliance with and enforcement of the established effluent requirements listed below exceedance of a maximum effluent concentrationvalue is deemed to have occurred if any single grab

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

sample and a second immediate confirmatory grab sample analyzed for a parametervalue for which an effluent requirement is listed below are both greater than the corresponding concentrationvalue set out for that parameter as an effluent requirement or with respect to the parameter pH the readings are outside the indicated rangeMONITORING - GENERAL(3) The Owner shall ensure that samples and measurements taken for the purposes of this Approval are taken at a time and in a location characteristic of the quality and quantity of the effluent stream or receiving water body as the case may be over the time period being monitored(4) The Owner shall establish and carry out upon commencement of operations of the Works a monitoring program for the streams named below by collecting a set of samples at the sampling points named in accordance with the monitoring frequency and sample type specified and analyzing the samples for each parameter named in the respective tables below unless otherwise required in writing by this Approval or by the District Manager(5) The methods and protocols for sampling analysis and recording shall conform in order of precedence to the methods and protocols specified in the following

(a) the Ministrys publication Protocol for the Sampling and Analysis of IndustrialMunicipal Wastewater Version 20 (January 2016) PIBS 2724e02 as amended

(b) the publication Standard Methods for the Examination of Water and Wastewater as amended

otherwise the written approval of the District Manager is required prior to sampling for any parameters not covered in the publications referred to in (a) or (b)

(6) The monitoring frequencies and parameters specified in the tables below with respect to any parameters which are not specifically included under Ontario Regulation 21595 as amended may be modified by the District Manager in writing from time to timeLIMITS AND MONITORING - COOLING WATER

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

(7) The Owner shall design construct and operate the Works such that the listed concentration for each of the effluent parameters named in Table 3 is not exceeded in the Cooling Water Discharge Duct (CWDD) as determined at the monitoring frequency and by the sample type specified in Table 3 below

Table 3 - Concentration Limits Sampling and Analysis Requirements

(sampled at the Plant CWDD)Effluent Parameters Maximum

ConcentrationIn Effluent (mgL)

Monitoring Frequency

Sample Type

Ammonia un-ionized lt002 M GrabHydrazine 01 M GrabMorpholine 25 M GrabBoron 50 M GrabHydrogen ion (pH) 60 ndash 95 pH Units M GrabTotal Residual Chlorine

001 5DW Grab

(8) The Owner shall ensure that on a daily average basis the temperature of the effluent in the Cooling Water Discharge Duct (CWDD) prior to entering the Discharge Channel meets the lesser temperature based on the actual temperature and temperature differential requirements set out in Table 4 for the calendar period as determined at the monitoring frequency and by sample type specified

Table 4 - Effluent Temperature Discharge Limits(measured in the forebay and in the CWDD)

Parameter Calendar Period Daily (24 hour) Avg

Temperature Limit

Monitoring Frequency

Sample Type

Effluent Temperature Year Round 322 Degrees Celsius

C Online

Temperature Difference (Effluent minus Intake)

Dec 15th to April 14th

April 15th to Dec 14th

130 Degrees Celsius

111 Degrees Celsius

CC

OnlineOnline

Effluent Temperature Operational Flexibility

June 15th - Sept 30th

345 Degree Celsius

C OnlineOnline

Notes

C means continuously throughout the year or in the case of failure or unavailability of an online monitor at a grab sample frequency of three times per 12 hours with at

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

least 3 hours between successive samples with measurement performed immediately in the field for each sample

The Effluent Temperature Operational Flexibility Parameter is invoked in situations where due to lake conditions intake temperatures will result in non-compliance with the Effluent Temperature Parameter of 322 Deg Celsius This flexibility comes into effect each year on June 15 th and will remain in effect up to and including September 30 th of the same year This flexibility expires on December 31 2023During this flexibility window the Owner shall be allowed to go beyond the Daily (24 hour) Average Effluent Temperature Limit of 322 Deg Celsius for no more than 30 aggregate days in this window and no more than 15 consecutive days for each event At no time shall the Owner exceed a Daily (24 hour) Average Temperature of 345 Deg CelsiusWhen invoked reporting of the Effluent Temperature Operational Flexibility Parameter shall follow Condition 7(5) for any occurrences during the flexibility window 7(1) for any exceedances of the Effluent Temperature Operational Flexibility Parameter Annual Reporting of the Effluent Temperature Operational Flexibility shall be covered under 7(4)Re-evaluation of this parameter will occur after the Calendar Period of 2023 Conditions with respect to the Parameter of Effluent Temperature Operational Flexibility is subject to change after the Calendar Period of 2023 based on an impact evaluation and assessment to the satisfaction of the District Manager Impact evaluation and assessment will be conducted as outlined in Condition 5(8) Reporting of the plan for impact evaluation and assessment shall follow Condition 7(6)

(9) The Owner shall ensure that the accuracy of the temperature measurements required to demonstrate compliance under this Section is within plus or minus 04 Celsius degreesLIMITS AND MONITORING - STEAM CONDENSATE AND FEEDWATER(10) The Owner may use and discharge the chemicals ammonia hydrazine morpholine and boron as a consequence of boiler feedwater system design and process and chemistry control requirements to the CWDD and ultimately to Lake Huron provided that

(a) the effluent parameter concentrations for each discharge do not exceed the concentrations for each parameter shown in the Normal and TransientShutdown columns in Table 5 for the respective Reactor Unit operating mode and

(b) the minimum Cooling Water Flows to the CWDD of approximately 39 cubic metres per second are online and

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

(c) the discharges are monitored for the parameters listed in Table 4 in accordance with the monitoring frequency and sample type listed in the Table

Table 5 - BoilerFeedwater Blowdown Effluent Concentration Limits

(Sampling Requirements at Sampling Points for all Boilers)

Effluent Parameter

Maximum Concentration (mgL) in BoilerFeedwater Effluents

by Reactor Unit Condition

Monitoring Frequency

Sample Type

Normal TransientShutdownTotal Ammonia 5 100 M GrabHydrazine 1 200 M GrabMorpholine 50 50 M GrabBoron 25 200 M GrabHydrogen Ion (pH)

- - M Grab

Sample two boilers per unit under Normal Operation For TransientShutdown Reactor Unit Conditions see Subsection (11) belowSampling and analysis for Boron is only required for Units 3 and 4

(11) The Owner shall ensure that over each calendar year should a sufficient number of transient operational events occur (start-up shutdown upset boiler discharge during outage or layup) a minimum of twelve (12) additional sets of samples (a set being enough sample collected to analyze for all parameters in Table 5) are collected from boiler system discharges and are analyzed for the parameters listed in Table 5 During start-up shutdown or upset sample two boilers per unit one from each of 2 banks of four during outage or lay-up sample each boiler discharge(12) The Owner may inject steam and condensate supplied by the Bruce Alternate Steam Supply Plant Off Site Vendor or by the electric boiler system up to a maximum rate of 60 Litres per minute to the Common Service Water Intakes as needed during cold weather(13) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 39 cubic metres per second equivalent to three (3) Condenser Cooling Water (CCW) pumps in operation while any of the activities listed below are being carried out

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

(a) discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD subject to the requirements listed in Table 4 when two (2) or more Reactor Units are discharging

(b) discharge of Building Heating Steam Condensate to the CWDD when one of the Reactor Units is the source of the heating steam at a flow rate not to exceed 1500 Litres per minute with concentrations of ammonia hydrazine morpholine and boron not to exceed 8 mgL 1 mgL 50 mgL and 25 mgL respectively

(c) discharge up to 25000 Litres per day of boilerfeedwater system leak testing dye to the CWDD at a flow rate not to exceed 900 Litres per minute with concentrations of sodium fluorescein ammonia hydrazine morpholine and boron not to exceed 25 mgL 100 mgL 200 mgL 50 mgL and 25 mgL respectively

(14) The Owner may discharge from the boiler steam and feedwater system (Feedwater discharge) to the CWDD from one (1) Reactor Unit subject to the requirements listed in Table 4 and provided that the Owner ensures that the total flow in the CWDD is at least 26 cubic metres per second equivalent to two (2) CCW pumps in operation(15) The Owner may carry out the following activities provided that the Owner ensures that the total flow in the CWDD is at least 13 cubic metres per second equivalent to one (1) CCW pump in operation while any of the activities listed below are being carried out

(a) discharge of Building Heating Steam Condensate to the CWDD at a rate not to exceed 1200 Litres per minute when the steam supply is from the Bruce Alternate Steam Supply Plant or by Off Site Vendor During a four Unit outage discharge is permitted at a rate not to exceed 300 Litres per minute provided that the Owner ensures that the total flow in the CWDD is at least 02 cubic metres per second

(b) discharge of blowdown from the Electric Boiler System to the CWDD at an operational rate of approximately 420 Litres per minute and a shutdownstandby rate of approximately 300 Litres per minute

(c) discharge of Building Heating Steam Condensate to the CWDD when the Electric Boiler is the source of the heating steam

(d) discharge of equipment leak testing water containing sodium fluorescein

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

at a concentration not to exceed 25 mgL and at a flow rate not to exceed 480 Litres per minute via the most accessible route to the Inactive Drainage System or to the Active Liquid Waste System and thus ultimately to the CWDD

(e) discharge from the ChilledHot Water Systems to the CWDD

(f) periodic draining of each chilledhot water system containing a biocide and inhibitor

(g) intermittent discharge from the Stator Cooling Water System

(h) discharge from the boiler steam and feedwater system to the CWDD subject to the requirements listed in Tables 3 and 5 when all four (4) Reactor Units are in a shutdown or lay-up state

(16) The Owner may discharge to the Inactive Drainage system and ultimately to the CWDD continuous purging of spray water containing a biocide from each Heating Ventilation and Air Conditioning Units(17) The Owner may discharge Building Heating Steam Condensate to the CWDD for short periods when the steam supply is from the Bruce Alternative Steam Supply Plant or Off Site Vendor at a rate not to exceed 1200 Litres per minute during four (4) Unit Outage or Lay-up conditions when forebay ice conditions prevent operation of the Condenser Cooling Water Pumps6 RECORDS RETENTIONThe Owner shall retain for a minimum of three (3) years from the date of their creation or longer if requested in writing by the District Manager all records and information related to or resulting from the monitoring activities required by this Approval including all calibration and maintenance records7 NOTIFICATION AND REPORTING(1) The Owner shall notify the District Manager or designate of any exceedances of the effluent objectives and requirements specified in Conditions 4 and 5 respectively orally as soon as reasonably possible and in writing within fourteen (14) days of the exceedance(2) In addition to the obligations under Part X of the Environmental Protection Act the Owner shall within 10 working days of the occurrence of any reportable spill as defined in Ontario Regulation 67598 by-pass or loss of any product by-product intermediate product oil solvent waste material or any other polluting substance into the environment submit a full written report of the occurrence to the District Manager describing the cause and discovery of the spill or loss clean-up and recovery measures taken preventive measures to be taken and schedule of implementation

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

(3) The Owner shall notify the District Manager in writing using a standard notification form within thirty (30) days of making any modifications to the Works under Condition 2 and shall provide an annual written update no later than the first of June of the following year including supporting information suitable for addition to the Supporting Information Document covering all such modifications to the Works undertaken for the reporting year in a format acceptable to the District Manager(4) The Owner shall prepare and submit an annual performance report to the District Manager no later than the first of June of the following year The report shall contain but shall not be limited to the following information in a format acceptable to the District Manager

(a) a summary of all monitoring and compliance data collected in the reporting period

(b) a comprehensive interpretation of all monitoring analytical and flow data collected relative to the Works during the reporting period including a comparison to the effluent objectives and requirements in Conditions 4 and 5

(c) a description of any operating problems encountered and corrective actions taken during the reporting period

(d) an evaluation of the calibration and maintenance procedures conducted on all monitoring equipment

(e) the results of any condenser lake water leakage testing using sulphur hexafluoride gas

(5) The Owner shall notify the District Manager verbally at the start and end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility The Owner shall notify the District Manager in writing 14 days after the end of each occurrence of invoking Condition 5(8) Effluent Temperature Operational Flexibility(6) The Owner shall prepare and submit for approval by the District Manager by May 31 2019 a detailed annual Thermal Field Monitoring Plan for their effluent discharge in consultation and engagement with the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario The annual monitoring plan will collect data for verification of thermal effects to the environment from effluent discharge and shall include but be not limited to on-site and off-site data monitoring plume model verification and biological surveillance(7) Further to Condition 5(8) and subsection (6) above the Owner shall prepare a comprehensive final report on the results of the thermal field monitoring that includes an assessment of thermal effects to the environment from Bruce Power effluent discharge that incorporates up-to-date climate science This report shall be submitted to the District Manager by March 31 2024 and to the Saugeen Ojibway Nation the

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

Historic Saugeen Metis and the Metis Nation of Ontario as requested (verbally or in writing)

Schedule A1 Environmental Compliance Approval Application dated December 15 2017 signed by Frank Saunders Vice President Nuclear Oversight and Regulatory Affairs submitted with supporting documentation and information

The reasons for the imposition of these terms and conditions are as follows

1 Condition 1 is imposed to ensure that the Works are built and operated in the manner in which they were described for review and upon which approval was granted This condition is also included to emphasize the precedence of Conditions in the Approval and the practice that the Approval is based on the most current document if several conflicting documents are submitted for review2 Condition 2 is included to ensure that the Works are operated in accordance with the application and supporting documentation submitted by the Owner and not in a manner which the Director has not been asked to consider These Conditions are also included to ensure that a Professional Engineer has reviewed the proposed modifications and attests that the modifications are in line with that of Limited Operational Flexibility and provide assurance that the proposed modifications comply with the Ministrys requirements stipulated in the Terms and Conditions of this Approval MOE policies guidelines and industry engineering standards and best management practices3 Condition 3 is included to ensure that the Works will be operated maintained and equipped in a manner enabling compliance with the terms and conditions of this Approval such that the environment is protected Comprehensive operations and maintenance manuals governing all significant areas of operation maintenance and repair are an integral part of the operation and maintenance of the Works Their compilation and use should assist the Owner in staff training in proper plant operation and maintenance and in identifying and planning for contingencies during possible abnormal conditions The manuals and procedures will also act as a bench-mark for Ministry staff when reviewing the Owners operation of the Works4 Condition 4 is imposed to establish non-enforceable effluent quality objectives which the Owner is obligated to use best efforts to strive towards on an ongoing basis It is the Ministrys experience that the setting of such objectives coupled with best efforts of an Owner to achieve them assists the Owner in complying with the Effluent Discharge Limits5 Condition 5 is imposed to ensure that the effluent discharged from the Works to Lake Huron meets the Ministrys effluent quality requirements as specified on a continuous basis thus minimizing environmental impact on the receiver In addition it requires the Owner to demonstrate on a continual basis that the quality and quantity of the effluent from the approved Works is consistent with the design objectives and effluent limits

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

specified in the Approval and that the approved Works are not causing any impairment to Lake Huron6 Condition 6 is included to set out the required record keeping procedures which will allow both the Owner and the Ministry to be kept informed of the operation of the works and progress made with respect to meeting the requirements of this Approval The condition emphasizes the necessity for proper record keeping to ensure that monitoring data is available when required7 Condition 7 is included to set out the required ongoing reporting procedures which will allow both the Owner the Ministry the Saugeen Ojibway Nation the Historic Saugeen Metis and the Metis Nation of Ontario to be kept informed of the operation of the Works as it relates to meeting the requirements of this Approval

Upon issuance of the environmental compliance approval I hereby revoke Approval No(s) 6383-5FDRFJ issued on November 20 2003

In accordance with Section 139 of the Environmental Protection Act you may by written Notice served upon me the Environmental Review Tribunal and in accordance with Section 47 of the Environmental Bill of Rights 1993 SO 1993 c 28 (Environmental Bill of Rights) the Environmental Commissioner within 15 days after receipt of this Notice require a hearing by the Tribunal The Environmental Commissioner will place notice of your appeal on the Environmental Registry Section 142 of the Environmental Protection Act provides that the Notice requiring the hearing shall state

The portions of the environmental compliance approval or each term or condition in the environmental compliance approval in respect of which the hearing is required and

a

The grounds on which you intend to rely at the hearing in relation to each portion appealedb

Pursuant to subsection 139(3) of the Environmental Protection Act a hearing may not be required with respect to any terms and conditions in this environmental compliance approval if the terms and conditions are substantially the same as those contained in an approval that is amended or revoked by this environmental compliance approval

The Notice should also include

The name of the appellant1

The address of the appellant2

The environmental compliance approval number3

The date of the environmental compliance approval4

The name of the Director and5

The municipality or municipalities within which the project is to be engaged in6

And the Notice should be signed and dated by the appellant

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc

This Notice must be served upon

The SecretaryEnvironmental Review Tribunal655 Bay Street Suite 1500Toronto OntarioM5G 1E5

AND

The Environmental Commissioner1075 Bay Street Suite 605Toronto OntarioM5S 2B1

AND

The Director appointed for the purposes of Part II1 of the Environmental Protection ActMinistry of the Environment Conservation and Parks135 St Clair Avenue West 1st FloorToronto OntarioM4V 1P5

Further information on the Environmental Review Tribunalrsquos requirements for an appeal can be obtained directly from the Tribunal at Tel (416) 212-6349 Fax (416) 326-5370 or wwwertgovonca

This instrument is subject to Section 38 of the Environmental Bill of Rights 1993 that allows residents of Ontario to seek leave to appeal the decision on this instrument Residents of Ontario may seek leave to appeal within 15 days from the date this decision is placed on the Environmental Registry By accessing the Environmental Registry at wwwebrgovonca you can determine when the leave to appeal period ends

The above noted activity is approved under s203 of Part II1 of the Environmental Protection Act

DATED AT TORONTO this 20th day of July 2018

Mansoor Mahmood PEngDirectorappointed for the purposes of Part II1 of the Environmental Protection Act

HVc District Manager MECP Owen SoundLuke Snider Bruce Power Inc