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Technical Memorandum DATE: May 25, 2017
TO: Mr. Bob Robinson
Bowen Island Municipality FROM: Siobhan Robinson, MASc, PEng – KWL
Karen Sutherland, MEng, PEng – KWL RE: DISTILLERY WASTEWATER DISCHARGE
Impact of Distillery Effluent on Snug Cove WWTP Capacity Our File 0744.037-300
1. Introduction A new distillery on Bowen Island, Copper Spirit Distillery (the Distillery), has requested to discharge treated effluent from their operations to the sanitary sewer system for the Snug Cove wastewater treatment plant (WWTP) in the Bowen Island Municipality (BIM).
The distilling operation is a typical batch type process. The Distillery proposes to install a preliminary wastewater treatment system to reduce their effluent total suspended solids (TSS) and adjust the pH to within a range comparable to typical domestic sewage concentrations. However, the Distillery does not expect that the biochemical oxygen demand (BOD) can be reduced to typical domestic sewage concentrations for discharge into the sanitary sewer.
High BOD wastewater discharged into BIM’s sanitary sewer system will reduce the available treatment capacity and has the potential to cause process upsets and/or effluent exceedances at the WWTP. Other municipalities have applied a high strength liquid waste surcharge fee structure to charge sanitary sewer users for high strength wastewater; BIM may want to consider a similar approach.
The objectives of this memorandum are twofold:
1. To review and update existing and projected municipal flows and loads to the WWTP; and 2. To determine the potential impact of the Distillery high BOD wastewater on the WWTP.
It is expected that the BIM will use this information to inform how they contract with the Distillery to accept their waste.
2
TECHNICAL MEMORANDUMImpact of Distillery Effluent on Snug Cove WWTP Capacity
May 25, 2017
2. Municipal Flows and Loads A site visit by Jason Vine and Karen Sutherland was conducted on March 24, 2017 to review the current operation of the WWTP and collect BIM’s record data.
The WWTP was built in early 1999 and was expanded in 2011. It is being operated under permit PE-07859 (refer to Appendix A). The original WWTP consisted of two Upflow Sludge Blanket Filtration (USBF) process bioreactors; a third bioreactor was installed during the 2011 upgrades. Refer to the Snug Cove WWTP Assessment (MESI, 2013) for details about the upgrade.
In reviewing data on site, it was noted that the effluent flow meter output signal did not correspond to pump operation. In addition, it was identified that the effluent weir level sensor used to calculated plant effluent flows might not be properly calibrated.
2.1 Weir Calibration and Corrected Flows KWL was tasked with calibrating the effluent weir, reviewing the historical flow records, and adjusting the historical records to reflect the results of the calibrated weir. BIM’s historical records are stored in FlowWorks.
In April 2017, Jason Vine and Tabe Johnson visited the site to calibrate the effluent V-notch weir. V-notch weirs are used to measure flow rate based on measured liquid elevation above the V-notch which is converted to a flow rate using a well-established formula, as follows:
1380 ∗ ^2.5 Where:
Q = flow, m3/s 1380 is a coefficient H = height of water above the notch, m
Based on the information and data collected at site, the coefficient was reduced by 17%, from 1380 to 1145.4, to improve the correlation between the measured and recorded flow rates. The revised formula is as follows:
0.83 ∗ 1380 ∗ ^2.5
The conversion formula in FlowWorks was then updated to reflect the coefficient adjustment and historical flows were recalculated. The following analysis is based on the corrected FlowWorks historical data.
2.2 Flows and Loads
Current Flows The current WWTP flows and loads were estimated using the following information:
BIM estimates that approximately 100 connections have been added to the system since the MESI 2013 report which yields a current population of 469 people. Refer to the Catchment Summary Table in Appendix B;
The commercial flows contribute 0.052 L/s or 4.5 m3/d to the system. Refer to the Catchment Summary Table in Appendix B; and
3
TECHNICAL MEMORANDUMImpact of Distillery Effluent on Snug Cove WWTP Capacity
May 25, 2017
A summary of influent and effluent data, either collected by the operations staff for plant control or reported to the Ministry of Environment (MoE) for permitting requirements, is included in Appendix C. This includes the updated FlowWorks data.
Based on historical data, the current minimum, average and maximum daily flows are summarized in Table 1. Daily flows from April 2015 to March 2017 were used as there was more confidence in the accuracy of this data. The data was further broken down into average winter and summer flows for each year, to better understand seasonal variations. Winter flows during this period were significantly higher than summer flows.
Table 1: Current Flows
Influent Flow Parameter Flow m3/d
Average Daily Flow Maximum Daily Flow Minimum Daily Flow
83 151 57
Average Summer (Apr-Sep 2015) Average Winter (Oct 2015-Mar 2016)
77 88
Average Summer (Apr-Sep 2016) Average Winter (Oct 2016-Mar 2017)
74 96
Based on the current population of 469, the flow per capita was estimated at 180 L/capita. The per capita flow was used to estimate the contributions from the single and multiple family dwellings and is presented in the Catchment Summary Table in Appendix B.
180 L/capita·day water use falls within the typical range for domestic indoor use of 150 to 300 L/ capita·day, significant outdoor use could add another 60-350 L/ capita·day.1 BIM water users are considered ‘water conservation aware’ therefore the indoor use projection of 180 L/capita·day was used for calculations.
The average winter flow in 2016, 96 m3/d, was very close to the WSER limit of 100 m3/d and the peak recorded flow was 151 m3/d. Above an average daily flow of 100 m3/d, the Wastewater Systems Effluent Regulations (WSER) comes into effect and changes in treatment and reporting are required.
Wastewater Systems Effluent Regulations (WSER) The WSER is a federal wastewater regulation announced by Environment Canada, effective June 29, 2012. This regulation applies to all discharges of over 100 m³/day (average) to water.
Reports for discharge flow rate, carbonaceous biochemical oxygen demand, total suspended solids, and un-ionized ammonia are required under the WSER as outlined in Table 2.
Table 2: WSER Effluent Quality Standards Carbonaceous
Biochemical Oxygen Demand (cBOD)
Suspended Solids (SS)
Total Residual Chlorine (TRC)1
Un-ionized Ammonia (NH3) (expressed as nitrogen, at 15 °C ± 1 °C)
Average Average Average Maximum
≤ 25 mg/L ≤ 25 mg/L ≤ 0.02 mg/L < 1.25 mg/L 1. TRC standard for systems < 5000 m3/d will be in effect January 1, 2021 Reference: Municipal Wastewater Regulation. B.C. Reg. 87/2012
1 Metcalf and Eddy, 5th Ed., 2014
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TECHNICAL MEMORANDUMImpact of Distillery Effluent on Snug Cove WWTP Capacity
May 25, 2017
The frequency of reporting varies based on average discharge rate. Combined sewer overflow reports are also required on an annual basis. The WSER is likely applicable to the Snug Cove WWTP as the current discharges sometimes exceed 100 m³/d.
Current Loads There was limited influent BOD and TSS data because reporting to MoE is limited to effluent BOD and TSS concentrations. Data from 17 available influent samples taken from 2005 to 2015 along with the WWTP design concentration from the 2011 O&M manual are presented in Table 3.
Table 3: Design, Measured, and Typical BOD and TSS Concentrations
Parameter Design Value
(mg/L)
Measured Range (mg/L)
Measured Average (mg/L)
Typical1 (mg/L)
BOD 400 92 – 499 288 200 TSS 275 105 – 459 251 195
1. Typical values for ‘Medium Strength’ untreated domestic wastewater, Table 3-18, Metcalf and Eddy, 5th Ed
The average day influent BOD and TSS concentrations were both within the range of typical municipal systems.2 The design BOD concentration (400 mg/L) was used for loading rate calculations since BIM indicated that concentrations are typically higher in the summer due to lower infiltration. The average measured TSS was used to calculate loading rates.
The estimated BOD and TSS loads are summarized in Table 4 below. The WWTP design load from the 2011 O&M manual are also presented.
Table 4: Current BOD and TSS Loads
Influent Parameter
WWTP Design Load
(mg/L)
Average Concentration
(mg/L)
Load (kg/d)
Average Load per Capita (kg/c·d)
BOD 58 400 33 0.071 TSS 38 251 20.8 0.044
The calculated average influent BOD load per capita, based on the design value of the plant to approximate summer loading, was typical of American BOD loading values of 0.075 kg/c·d.3
The design BOD concentrations used is significantly higher than the average calculated concentration of 288 mg/L. BIM may want to consider collecting additional influent data to confirm influent concentrations and better understand the impact of additional development on the system.
Projected Flows and Loads BIM indicated that the system will likely be expanded to include the following connections for a total of 132 additional people:
Abbey Field; A senior’s complex; 12 new lots; and 10 houses along Miller Road.
2 “Medium Strength Untreated Domestic Wastewater” Table 3-18, Metcalf and Eddy, 5th Ed 3 Table 3-16, Metcalf and Eddy, 5th Ed.
5
TECHNICAL MEMORANDUMImpact of Distillery Effluent on Snug Cove WWTP Capacity
May 25, 2017
The projected flows and loads were compared to the WWTP design values from the 2011 O&M manual and are presented in Table 5.
Table 5: Future Flows and Loads and WWTP Design Values
Description Number of
People Average Flow
(m3/d) BOD Load
(kg/d) TSS Load
(kg/d)
Existing (including Commercial flows) 469 88 24 21 Future: Abbey Field Senior Complex 12 New Lots 10 Houses on Miller Road
132 24 6 7
Total 601 112 30 28 WWTP Design Values 240 58 38
Based on the current calculated flow rate of 180 L/cap·day, the WWTP has the capacity to treat a population equivalent flow of 1,300 people.
The additional connections are expected to result in the plant exceeding 100 m3/d which will trigger WSER compliance requirements. However, flows and loads are expected to fall well within the design capacity of the WWTP.
3. Impact of Distillery High BOD Wastewater The Distillery will include both a production facility and a small restaurant for the public. Wastewater generated as part of the distilling process will be separated from other wastewater streams generated at the site, such as toilets and the kitchen. The Distillery confirmed that a grease trap will be installed on the kitchen effluent line.
The Distillery provided the following information on the expected flows and loads of the distillery and their intended operation to manage the wastewater:
The distilling operation is a batch type process. Three equalization tanks will collect wastewater generated by the process to allow for control of pH, temperature and TSS;
The intent is to monitor the pH, temperature and COD in the equalizations tanks and discharge a consistent amount of wastewater daily to minimize surges to the municipal collection system; and
The wastewater is expected to have the characteristics presented in Table 6. This data was provided by the Distillery in an email dated April 4, 2017 (see Appendix D). KWL has not reviewed the calculation of the expected loadings.
The connection of a distillery to BIM’s sanitary sewer system will increase the BOD loading to the WWTP disproportionately compared to the additional flow because distillery effluent is high in BOD compared to domestic sewage. The additional flow has the potential to reduce the available WWTP capacity to treat additional loads from other residences or commercial activities.
6
TECHNICAL MEMORANDUMImpact of Distillery Effluent on Snug Cove WWTP Capacity
May 25, 2017
Table 6: Distillery Equivalent per Capita BOD Load
Effluent Parameter Expected Value or
Range1 Additional Comments from the Distillery
pH 6.5-8.5 Temperature 20-40 °C COD 3,000 mg/L BOD 1,800 mg/L TSS 400 mg/L
Flow, Peak Daily 850 L 1,790 mg/L COD
1,070 mg/L BOD (3-4 kg/day)2
400 mg/L TSS
Batches, Peak 12 batches/month 1,900 L WW/batch
23 m3/month
1: Value or range provided by the Distillery 2: At peak production, the expected daily flow will be 850L at 1,790 mg COD load or 1,070mg of BOD equivalent load. The peak expected load is 4kg per day of BOD. In the first year, this is expected to be closer to 3 kg/d.
To quantify the impact of the Distillery’s high BOD strength wastewater on the WWTP, the Distillery’s estimated BOD loadings have been converted into equivalent per capita BOD load in Table 7 and equivalent flow for comparison. The actual flow increase of 850 L/d is included in the table as a reference.
Table 7: Distillery Equivalent per Capita BOD Load
Parameter Equivalent Residential
Population Equivalent Flow2
(m³/d) 850 L/d 4 People
3 – 4 kg BOD/day 42 – 56 People1 7 – 10 m3/d 1. Based on the average calculated BIM domestic sewage BOD loading of 71 g/capita·day 2. Based on an estimated per capita flow of 180 L/ capita·day from BIM record data; this is provided for comparison only. The additional flow to the plant is 850 L/d
The current connected BIM population is approximately 469 full time residents with a projected connected population increase of 132 residents. The maximum increase in BOD load due to the distillery is equivalent to a population of 56 persons.
The maximum recorded daily flow to the plant was 151 m³/d on January 28, 2016.
The existing WWTP was designed for an influent average dry weather flow (max day) of 240 m3/d and peak hourly flow of 21 m³/hr with an average influent BOD of 400 mg/L or 58 kg/d. The addition of the distillery flows and projected flows from system expansion are below the design values of the WWTP, as outlined in Table 8. The WWTP should be able to treat the additional flows, provided the distillery flows are discharged to the system slowly.
8
TECHNICAL MEMORANDUMImpact of Distillery Effluent on Snug Cove WWTP Capacity
May 25, 2017
Statement of Limitations This document has been prepared by Kerr Wood Leidal Associates Ltd. (KWL) for the exclusive use and benefit of the intended recipient. No other party is entitled to rely on any of the conclusions, data, opinions, or any other information contained in this document.
This document represents KWL’s best professional judgement based on the information available at the time of its completion and as appropriate for the project scope of work. Services performed in developing the content of this document have been conducted in a manner consistent with that level and skill ordinarily exercised by members of the engineering profession currently practising under similar conditions. No warranty, express or implied, is made.
Copyright Notice These materials (text, tables, figures, and drawings included herein) are copyright of Kerr Wood Leidal Associates Ltd. (KWL). Bowen Island Municipality is permitted to reproduce the materials for archiving and for distribution to third parties only as required to conduct business specifically relating to the Impact of Distillery Effluent on Snug Cove WWTP Capacity. Any other use of these materials without the written permission of KWL is prohibited.
Revision History
Revision # Date Status Revision Description Author
B May 25, 2017 FINAL SMR/KAS
A May 11, 2017 DRAFT Draft for client review SMR/KAS
\\bbyfs1.kwl.ca\0000-0999\0700-0799\744-037\300-Report\WWTP-DistilleryImpact-Final\2017-05-24_SnugCoveDistilleryWWDischargeReview_FinalTMemo.docx
Appendix A
Permit
, .
• •••••
BRITISH COLUMBIA
Date: APR 1 0 2001
REGISTERED MAIL
BOWEN ISLAND MUNICIPALITY Box 279 981 Artisan Lane Bowen Island, British Columbia VON I GO
Dear Permittee:
1�1'/UL l(tjZlF�
;577/L(�e!J,wf! a, '1¥7 <1>-l>S cL/19-,tFtC.l!
File: PE-07859
Enclosed is amended Permit PE-07859 issued under the provisions of the Waste Management Act. Your attention is respectfully directed to the conditions of the permit. An annual fee for the permit will be determined in accordance with the Waste Management Permit Fees Regulation.
This permit does not authorize entry upon, crossing over, or use for any purpose of private or crown lands or works, unless and except as authorized by the owner of such lands or works.. The responsibility for obtaining such authority rests with the permittee. It is also the responsibility of the permittee to ensure that all activities conducted under this permit are carried out with due regard to the rights of third parties, and comply with other applicable legislation that may be in force.
This decision may be appealed by persons aggrieved by the decision in accordance with Part 7 of the Waste Management Act. Notice of the appeal must (I) be in writing, (2) include the grounds for appeal, ( 3) be directed by registered mail or personally delivered to the Chair, Environmental Appeal Board, 4th Floor 8 36 Yates Street, Victoria, British Columbia, V8W 9Vl, (4) be delivered within 30 days from the date notice of the decision is given, and (5) be accompanied by a fee of $25.00, payable to the Minister of Finance and Corporate· Relations.
Administration of this permit will be carried out by staff from our regional office located at 10470- 152nd Street, Surrey, British Columbia, V3R OY3. Plans, data and reports pertinent to the permit are to be submitted to the Regional Waste Manager at this address.
Yours truly,
�� H.G. Maxwell Assistant Regional Waste Manager
enclosure
cc: Environment Canada
• THE GOVERNMENT OF BRITISH COLUMBIA IS AN "EMPLOYMENT EQUITY EMPLOYER" •
Ministry of Environment, lands and Parks
BC Environment Lower Mainland Region Pollution Prevention
Mailing/Location Address: 10470 152 Street SURREY BC V3R OY3
Telephone: (604) 582·5200 Facsimile: (604) 584·9751
or (604) 582·5335
• MINISTRY OF ENVIRONMENT, LANDS AND PARKS
Lower Mainland Region Pollution Prevention 10470-152 Street Surrey, British Columbia V3ROY3 BRITISH
COLUMBIA
PERMIT PE-07859
Telephone: (604) 582-5200 Fax: (604) 584-9571
Under the Provisions of the Waste Management Act
BOWEN ISLAND MUNICIPALITY
Box 279
981 Artisan Lane
Bowen Island, British Columbia
VON 1GO
is authorized to discharge effluent to the mru:ine waters of Queen Charlotte Channel from a community sewerage system located at 925 Dorman Road, Bowen Island, British Columbia, subject to the conditions listed below. Contravention-of any of these conditions is a violation of the· waste Management Act and may result in prosecution.
1. AUTHORIZED DISCHARGE
1.1 This section applies to the discharge of effluent from a COMMUNITY
SEWERAGE SYSTEM SERVING THE SNUG COVE AREA OF BOWEN ISLAND. The site reference number for this discharge is E208318.
1.1.1 The maximum authorized rate of discharge is 227 cubic metres per day.
1.1.2 · The characteristics of the discharge shall be:
5-day biochemical oxygen demand 45.mg!L, maximum;
Total suspended solids (nonfilterable residue) 45.mg!L, maximum;
Fish bioassay (rainbow trout), LT50 96.hours, minimum.
Date Issued: October 9, 1987
���:t����'APR I 0 2001
Assistant Regional Waste Mariager
Page: I of 7 PERMIT: PE-07859
PROVINCE OF Pollution Prevention BRITISH COLUMBIA
1.1.3 The designated treatment works are:
• a flow equalization tank,
• a secondary sewage treatment plant,
• a submerged outfall extending approximately 100 metres offshore at the entrance of Snug Cove discharging to a minimum depth of approximately 50 metres below mean low water,
approximately located as shown on attached Site Plan A.
1.1.4 The location of the facilities from which the discharge originates is Lot 777, Group I, NWD.
1.1.5 The location of the point of discharge is approximately I 00 metres east ofLot 1910, Group l , NWD.
2. GENERAL REQUIREMENTS
2.1 Maintenance of Works
The permittee shall inspect the authorized works regularly and maintain them in good working order. Notify the Regional Waste Manager of any malfunction of these works.
2.2 Bypasses
The discharge of effluent which has bypassed the designated treatment works is prohibited unless the approval of the Regional Waste Manager is obtained and confirmed in writing.
2.3 Process Modifications
The Regional Waste Manager shall be notified prior to implementing changes to any process that may adversely affect the quality and/or quantity of the discharge.
Date Issued: October9, 1987 Date Amended: APR 1 0 2001 (most recent) Page: 2 of 7 PERM IT: PE-07859
·PROVINCE OF BRITISH COLUMBIA
Pollution Prevention
2.4 Sludge Wasting and Disposal or Utilization
Efforts shall be taken to beneficially utilize the sludge wasted from the treatment plant. Utilization or disposition of the sludge shall be in a manner approved by the Regional Waste Manager, or as authorized by regulation under the Waste Management Act.
2.5 Emergency Procedures
In the event of an emergency which prevents compliance with a requirement of this . permit, that requirement shall be suspended for such time as the emergency continues or until otherwise directed by the Regional Waste Manager provided that:
(a) Due diligence was exercised in relation to the process, operation or event which caused the emergency and that the emergency occurred notwithstanding this exercise of due diligence;
(b) The manager is immediately notified of the emergency; and
(c) It can be demonstrated that every thing possible is being done to restore compliance in the shortest possible time.
Notwithstanding (a), (b) and (c) above, the manager may require the operation to be suspended or production levels to be reduced to protect the environment while the situation is corrected.
2.6 Posting of Outfall
A sign shall be erected along the alignment of the outfall above high water mark. The sign shall identify the nature of the works. The wording and size of the sign shall be acceptable to the Regional Waste Manager.
2. 7 Outfall Inspection
The permittee shall have the outfall inspected once each five years by independent qualified personnel to ensure it is in good working condition. An inspection report shall be submitted to the Regional Waste Manager within 30 days after the inspection date. The next report shall be submitted by December 31, 2005.
Date Issued: October 9, 1987 Date Amended: (most recent) APR 1 0 ?001
H.G.M�� Assistant Regional Waste Manager
Page: 3 of7 PERMIT: PE-07859
PROVINCE OF BRITISH COLUMBIA
Pollution Prevention
2.8 Disinfection
Although disinfection of the effluent is not required at this time, suitable provisions shall be made to include disinfection facilities in the future. If disinfection is by chlorination, dechlorination facilities may also be required.
2.9 Facility Classification and Operator Certification
The permittee shall have the works authorized by this permit classified and the classification shall be maintained by the Environmental Operators Certification Program Society (Society). The works shall be operated and maintained by persons certified within and according to the program provided by the Society. Certification must be completed to the satisfaction of the Regional Waste Manager. In addition, the manager shall be notified of the classification level of the facility and certification levels of the operators, and changes of operators and/or operator certification levels within 30 days of any change.
Alternatively, the works authorized by this permit shall be operated and maintained by persons who the permittee can demonstrate to the satisfaction of the Director, are qualified in the safe and proper operation of the facility for the protection of the environment.
3. MONITORING AND REPORTING REQUIREMENTS
3.1 Discharge Monitoring
3.1.1 Flow Measurement
Provide and maintain a suitable flow measuring device and record once per week the effluent volume discharged over a 24-hour period.
3.1.2 Grab Sampling
A suitable sampling facility shall be installed and a grab sample of the effluent authorized by Section 1.1 shall be obtained once each quarter. Proper care should be taken in sampling, storing and transporting the samples to adequately control temperature and avoid contamination, breakage, etc.
Date Issued: October 9, 1987 Date Amended: Assistant Regiona] Waste Manager (most recent) APR 1 Q 2001 Page: 4of7 PERMIT: PB-07859
• PROVINCE OF BRITISH COWMBIA
3.1.3 Analyses
Pollution Prevention
'\ Obtain analyses of the sample for the following:
5-day biochemical oxygen demand (BOD5), mg/L; Total suspended solids (nonfilterable residue), mg/L.
3.1.4 Grab Sampling (Toxicity)
A suitable sampling facility shall be installed and a grab sample of the effluent authorized by Section 1.1 shall be obtained once each three years. Proper care should be taken in sampling, storing and transporting the samples to adequately control temperature and avoid contamination, breakage, etc.
3.1.5 Analysis (Toxicity)
Obtain analyses of the grab sample for the following:
Fish bioassay (rainbow trout), LT50, hours.
If the fish bioassay (rainbow trout) toxicity test specified above results in a failure, the permittee is required to notify the Regional Waste Manager immediately and conduct a confirmation toxicity test within 7 days of the date when the previous toxicity sample was taken. When conducting a confirmation toxicity test, the discharger must also monitor ammonia levels, temperature and pH. If two consecutive toxicity tests are failed, toxicity monitoring is to be conducted 4 times per year, until three consecutive toxicity tests are passed, after which testing reverts to once per three years.
Date Issued: October9, 1987 Date Amended:
H.G. Maxwell Assist ant Regional Waste M anager
(most recent ) Page: 5 of 7
APR 1 0 ?001 PERM IT: PE-07859
•
' '
PROVINCE OF BRITISH COLUMBIA
Pollution Prevention
3.2 Monitoring Procedures
3.2.1 · Sampling Procedures
Sampling is to be carried out in accordance with the procedures described in the latest version of the "British Columbia Field Sampling Manual for Continuous Monitoring Plus the Collection of Air, Air-Emission, Water, Wastewater, Soil, Sediment, and Biological Samples, 1996 Edition (Permittee)", or by suitable alternative procedures as authorized by the Regional Waste Manager.
A copy of the above manual may be purchased from the Queen's Printer Publications Centre, P. 0. Box 9452, Stn. Prov. Gov't. Victoria, British Columbia, V8W 9V7 (1-800-663-6105 or (250) 387-6409). A copy of the manual is also available for inspection at all Pollution Prevention offices.
3.2.2 Chemical Analysis
Analyses are to be carried out in accordance with procedures described in the "British Columbia Environmental Laboratory Manual for the Analysis of Water, Wastewater, Sediment and Biological Materials (March 1994 Permittee Edition)", or by suitable alternative procedures as authorised by the Regional Waste Manager.
A copy of the above manual may be purchased from the Queen's Printer Publications Centre, P. 0. Box 9452, Stn. Prov. Gov't. Victoria, British Columbia, V8W 9V7 (1-800-663-6105 or (250) 387 -6409), and are also available for inspection at all Pollution Prevention offtces.
3.2.3 Quality Assurance
Date Issued: October 9, 1987 Date Amended:
All data of analyses required to be submitted by the permit shall be conducted by a laboratory acceptable to the Regional Waste Manager. At the request of the manager, the permittee shall provide the laboratory quality assurance data, associated field blanks and duplicate analysis results along with the submission of data required under Section 1.1 of the permit.
(most recent) APR 1 Q 2001 Page: 6 of 7 PERM IT: PE·07859
,, PROVINCE OF BRITISH COLUMBIA
3.3 Reporting
Pollution Prevention
Maintain data of analyses and flow measurements for inspection and submit the data, suitably tabulated, to the Regional Waste Manager for the previous six months. The reporting period ends March 31 and September 30 of each year. All reports shall be received by the manager within 31 days of the end of the reporting period.
· Date Issued: October 9, 1987 Date Amended:
APR l Q ZOOJ (most recent) Page: 7 of7
H.G. M'axwell Assistant Regional Waste Manager
PERMIT: PE-07859
l'lROVINCE OF BRmSH COLUMBIA
A N
BOWEN ISLAND
it � 2 oc 0 0
SITE PLAN A
fv!AIJNION BAY
Pollution Prevention
12'><-ISTING OCEAN
/OUTFALL
=---"'' _4_.. LOCATION
I ' \ I I
L 1'310 � (c;VRD CRIPPC:N
. r
EXIST.II--IG Re.GIOI-JAL FARK)
SEPTIC. TAt--..1( � --- , 8t FUMP STATIOI-1 t 5ECONDARY .- �
.SEWA<:;ie . '
TREA TlviENT PLANT I
L 777 ( �VRD CRIPPeN
fiE-CiiOt-..lAL PARK.)
OF DISCI-1AAGE
Legal Description: Source: Lot 777, Group I, NWD Discharge: Approximately I 00 metres east of Lot 1910, Group l, NWD
1'2':>0.000
v.Jr, S T Vli.t.Jf.OlJVE+-l
,.---....._..._.., . c
--�
Scale: 1 : I 0,000
Permit: PE-07859
Date: APR 1 0 2001
H.G. Maxwell Assistant Regional Waste Manager Lower Mainland Re ion
Appendix B
Catchment Summary Table
Table B-1: Preliminary Catchment Summary
Flow per lot @"xx" l/c/d
Flow per lot @"xx" l/c/d
180 180Current Flows
1 RCMP Site 1 3.2 3 320 0.004 0 2 0 0 - 1 500 0.006 0.01
2CBIM Parcel 2: Municipal Land West Side of Seniors Lane, North Portion of lot
20 3.2 64 11520 0.133 0 2 0 0 - 0 0 0.000 0.13
3 BIM Parcel 3: East side of Miller Road 30 3.2 96 17280 0.200 0 2 0 0 - 1 500 0.006 0.21 4 Stacey Beamer site 0 3.2 0 0 - 0 2 0 0 - 4 500 0.023 0.02
5Seniors' CentreAssume potential for another 20 units
0 3.2 0 0 - 39 2 78 14040 0.163 0 0 0.000 0.16
6 Snug Cove House 12 3.2 38.4 6912 0.080 18 2 36 6480 0.075 0 0 0.000 0.16 7 SF lots Seniors lane to mid block ROW 7 3.2 22.4 4032 0.047 0 2 0 0 - 0 0 0.000 0.05
8A SF lots Seniors lane to mid block ROW 3 3.2 9.6 1728 0.020 0 2 0 0 - 0 0 0.000 0.02 8B SF lots Seniors lane to mid block ROW 2 3.2 6.4 1152 0.013 0 2 0 0 - 0 0 0.000 0.01
9SF lots Seniors lane to mid block ROW, currently in Snug Cove catchment area
2 3.2 6.4 1152 0.013 0 2 0 0 - 0 0 0.000 0.01
Pumped Total: 0.78
2ABIM Parcel 2: Municipal Land West Side of Seniors Lane, South Portion
24 3.2 76.8 13824 0.160 0 2 0 0 - 2 500 0.012 0.17
2BBIM Parcel 2: Municipal Land West Side of Seniors Lane, Middle Portion of lot
3.2 0 - 16 2 32 5760 0.067 1 500 0.006 0.07
Gravity Total: 0.24 Total 101 323 57,920 0.670 73 146 26,280 0.304 9 0.052 1.03
Approximate Total Daily Flow, m3/d: 89
Total Population: 469
Zone DescriptionUnit
Capita Per Unit
Capita per Lot
Flow Assumed500 L/unit/day
Flow (L/s)Total Flow
(L/s)
Single Family CommercialMulti Family
L/s Unit Capita
Per UnitCapita per Lot
L/s Unit
DISTILLERY WASTEWATER DISCHARGE Impact of Distillery Effluent on Snug Cove WWTP Capacity
Appendix B May 25, 2017
Appendix C
Flow and Load Data
SNUG COVE WWTP
FLOW, INFLUENT AND EFFLUENT DATA
Per Capita Flow
(L/c/d) @ population
of
Per Capita Flow
(L/c/s) @
population of
pH TSS (mg/L)
BOD
(mg/L)
Temp.
deg.C pH
TSS
(mg/L)
BOD
(mg/L)
Nitrate/
Nitrite
(mg/L)
Ammonia
(N-NH4)
(mg/L)
TKN
(mg/L)
Total
Phosphorous
(mg/L as P)
November 4, 2005 6.7 15.7 0.4 33.2 101.94 0.001
November 10, 2005 6.6 15.5 0.3 41.2 126.50 0.001
November 17, 2005 6.8 15.4 6.5 0.4 27.9 85.66 0.001
November 24, 2005 6.8 15.1 6.3 0.2 33.2 101.94 0.001
December 1, 2005 6.8 6.4 0.2 29 89.04 0.001
December 7, 2005 7.4 29.9 91.80 0.001
December 8, 2005 145 223 14 6.6 5 <10 0.7 4.7 4.24
December 15, 2005 7.1 13.8 6.4 0.6 42.7 131.10 0.002
December 19, 2005 6.7 13.7 0.7
December 7, 2006 140 188 12 6.15 9 <10 1.5
December 21, 2006 7 12.6 5.5 0.8 54.9 168.56 0.002
January 4, 2007 7.4 10.7 6.4 >3
January 11, 2007 7.3 11.5 6.2 1.3 38.3 117.59 0.001
January 14, 2007 11.4 1.5 42.5 130.49 0.002
January 15, 2007 7.6 11.4
February 1, 2007 10.7 5.5 0.6 35 107.46 0.001
February 4, 2007 11 5.5 0.8 44.2 135.71 0.002
February 11, 2007 12.2 5.5 1 48.9 150.14 0.002
February 15, 2007 6.6 12
February 25, 2007 11.5 6.5 0.2 56.9 174.70 0.002
March 1, 2007 11.5 5.5 0.6 41.7 128.03 0.001
March 4, 2007 12 6.5 0.4 48.1 147.68 0.002
March 8, 2007 235 349 12.5 6.2 31 <10 0.4 47.1 144.61 0.002
March 9, 2007 7 12.7 6.44 43.9 134.79 0.002
March 14, 2007 6.9 11.3 6.3 0.4 51.1 156.90 0.002
March 18, 2007 11.5 6.8 0.2 58.2 178.70 0.002
March 22, 2007 7 11.6
May 3, 2007 7 14.9 0.8 58.6 179.92 0.002
May 10, 2007 7.1 15.5 6.4 0.8 48.1 147.68 0.002
May 13, 2007 15 5.5 1.5 60.5 185.76 0.002
May 17, 2007 6.4 16.6 6.4 1
May 24, 2007 6.2 16.7 6 0.6
May 27, 2007 6.9 16.8 51.4 157.82 0.002
May 31, 2007 17 5.5 0.2 45.2 138.78 0.002
June 7, 2007 6.8 18.3 48.2 147.99 0.002
June 12, 2007 7.14 312 359 18.3 6.92 17 14 0.8
June 13, 2007 7.14 18.3
June 14, 2007 17.7 6 0.8
June 21, 2007 18 6 0.4 44.1 135.40 0.002
June 28, 2007 6.7 18.9
August 2, 2007 6.5 20.8 6.6 0.8 51.9 159.35 0.002
August 7, 2007 6.8 21.3 0.8 58.3 179.00 0.002
August 12, 2007 21 6.5 1.5 46.6 143.08 0.002
August 16, 2007 6.5 21.3 6.5 1
August 20, 2007 6.5 21.6 6.6 0.8 46 141.24 0.002
August 23, 2007 6.6 21.6 6.5 0.8
August 26, 2007 21.5 6 0.6
August 30, 2007 21.7 6.5 0.6
September 2, 2007 21.7 6 3 51.8 159.04 0.002
September 6, 2007 228 444 21.7 6.79 4 <10 1
September 7, 2007 6.5 21.9 6 45.2 138.78 0.002
September 9, 2007 21 6 0.4 53.9 165.49 0.002
September 16, 2007 21.5 6 0.6 47.6 146.15 0.002
September 23, 2007 20.3 6 0.8 45.2 138.78 0.002
September 27, 2007 6.7 20 6.5 0.8
September 30, 2007 19 6.5 1.5
October 4, 2007 7.2 17.8 6.6 0.6
October 11, 2007 7.1 17.2 6.4 0.4 57 175.01 0.002
October 14, 2007 18 5.5 0.4 45.4 139.39 0.002
October 18, 2007 6.9 17.4 0.6 45.2 138.78 0.002
October 21, 2007 15 6 0.2 56.7 174.09 0.002
October 26, 2007 6.8 15.3 6.4 0.5
October 29, 2007 7 15.8 6.5 0.6 43 132.03 0.002
November 1, 2007 6.9 15.7 6.3 0.8 43.9 134.79 0.002
November 4, 2007 15 5.5 0.2 51.8 159.04 0.002
November 8, 2007 6 15.2 6 0.8 49 150.45 0.002
November 11, 2007 14.9 5.5 0.6 45.8 140.62 0.002
November 15, 2007 6.7 14.4 6 0.8
November 22, 2007 7 13.9 6.4 0.8
December 2, 2007 12.6 1.5 44.4 136.32 0.002
December 6, 2007 211 228 10.9 6.02 20 10 1.5 57.2 175.62 0.002
December 7, 2007 7.2 11 7.2 54.1 166.11 0.002
December 9, 2007 11.7 0.6 46.8 143.69 0.002
December 13, 2007 7.1 12.2 7.1 1.3 44.4 136.32 0.002
December 16, 2007 11.6 0.4 57.4 176.24 0.002
December 20, 2007 7 11.6 7 0.8
December 23, 2007 11.7 0.2 57 175.01 0.002
December 27, 2007 6.5 11.7 6.5 1
December 30, 2007 11.2 0.6
January 3, 2008 6.9 11.8 6 0.7 46.6 143.08 0.002
January 10, 2008 6 11.2 5.5-6 0.8 69.1 212.16 0.002
January 13, 2008 10.8 5.5 0.2 47.2 144.92 0.002
January 17, 2008 7.1 11.1 6.1 1.5
January 20, 2008 11.3 6 0.4 49.8 152.90 0.002
January 24, 2008 6.9 11.2 0.4 38.8 119.13 0.001
January 31, 2008 7 11.1 6.1 0.8 39.8 122.20 0.001
February 4, 2008 10.8 6 0.2 51.7 158.74 0.002
February 10, 2008 10.1 5.5 0.2 54.5 167.33 0.002
February 14, 2008 10.2 5.9 0.6
February 17, 2008 10.9 6 0.4 52.6 161.50 0.002
February 20, 2008 5.9 11.2 5.5-6 0.7
February 24, 2008 11.8 6 0.4
March 2, 2008 12 6.5 0.4 52.3 160.58 0.002
March 6, 2008 12.2 6.54 0.6 39.6 121.59 0.001
March 7, 2008 6.2 12.5 6.1 39.4 120.97 0.001
March 13, 2008 12.5 6.2 0.6
March 20, 2008 12.7 6 0.4 38.9 119.44 0.001
March 23, 2008 13 6 0.4 41.5 127.42 0.001
March 27, 2008 13 6 0.7 37.6 115.45 0.001
March 30, 2008 12.8 6 0.4 49.5 151.98 0.002
April 3, 2008 12.9 6 0.6 36.4 111.76 0.001
April 6, 2008 13.2 6.5 0.4 37.4 114.83 0.001
April 11, 2008 13.4 6 0.6
April 13, 2008 13.6 6 0.4 44.2 135.71 0.002
April 17, 2008 14 6 3 40.7 124.96 0.001
April 20, 2008 14 6 0.6 46.8 143.69 0.002
April 23, 2008 14.2 6 0.6 40.4 124.04 0.001
April 27, 2008 14.7 6 0.4 47.1 144.61 0.002
April 30, 2008 14.8 6 0.8 39.9 122.51 0.001
May 4, 2008 15.6 6.5 0.6 38.4 117.90 0.001
May 8, 2008 15.8 6 0.7
May 11, 2008 15.9 6 0.6 45.3 139.09 0.002
May 15, 2008 15.8 6 0.6
469Date
Influent Effluent
Average Flow
(L/min)
Recalibrated
Flow from
FlowWorks (L/d)
\\bbyfs1.kwl.ca\0000-0999\0700-0799\744-037\400-Work\WWTPEffluent\2017-05-17Snug Cove WWTP Flow Data.xlsx
Appendix C
SNUG COVE WWTP
FLOW, INFLUENT AND EFFLUENT DATA
Per Capita Flow
(L/c/d) @ population
of
Per Capita Flow
(L/c/s) @
population of
pH TSS (mg/L)
BOD
(mg/L)
Temp.
deg.C pH
TSS
(mg/L)
BOD
(mg/L)
Nitrate/
Nitrite
(mg/L)
Ammonia
(N-NH4)
(mg/L)
TKN
(mg/L)
Total
Phosphorous
(mg/L as P) 469Date
Influent Effluent
Average Flow
(L/min)
Recalibrated
Flow from
FlowWorks (L/d)
May 18, 2008 16.9 6 1 51.2 157.20 0.002
May 22, 2008 17.2 6 1.2 50.6 155.36 0.002
May 25, 2008 17.3 6 >3 42.9 131.72 0.002
May 29, 2008 18 6 0.6
June 4, 2008 6.9 278 394 17.5 6.63 29 16 0.6 55.2 169.48 0.002
June 8, 2008 17.4 6 0.8 39.8 122.20 0.001
June 12, 2008 16.9 6 0.8 58.9 180.84 0.002
June 15, 2008 17.5 6.5 1 49.1 150.75 0.002
June 19, 2008 17.7 6 0.8
June 23, 2008 18.4 6 0.6
June 26, 2008 18.4 6 0.6
July 2, 2008 20.2 6.5 >3.0 52.7 161.81 0.002
July 7, 2008 20.8 6.5 0.8 51.3 157.51 0.002
July 13, 2008 20.5 6 0.6 57.4 176.24 0.002
July 16, 2008 20.8 6.5 0.8 43 132.03 0.002
July 20, 2008 21 6 0.6 53.4 163.96 0.002
July 24, 2008 21.1 6.5 0.7
July 27, 2008 20.7 6 0.8 47.6 146.15 0.002
July 31, 2008 20.9 6 0.6
August 3, 2008 20.7 6 3
August 6, 2008 21.2 6 0.8
August 14, 2008 21.3 6 0.6
August 17, 2008 20.7 6 2
August 21, 2008 20.9 6 1
August 24, 2008 21.5 6 1.5
August 28, 2008 20.4 6 0.6
August 31, 2008 19.7 6.5 0.2
September 4, 2008 7.33 321 254 20.3 7.18 < 10 8 0.6
March 8, 2012 7.7 167 290 7.23 11.2 13
June 13, 2012 7.21 247 275 7.32 11.7 5.6
August 16, 2012 7.34 105 319 7.45 10.5 12.5
September 4, 2012 7.52 288 220 7.61 36 12
September 5, 2012 7.64 459 499 7.58 17.4 8.4
June 6, 2013 7.56 246 409 7.56 9.1 6.6 70.83 217.47 0.003
October 20, 2013 7.99 256 229 7.69 5.6 5 15.3 60.41 185.48 0.002
December 5, 2013 7.78 423 120 7.39 5.1 2.6 62.5 191.90 0.002
March 13, 2014 10.4 6 2 63.88 196.13 0.002
March 19, 2014 6 0.8 76.38 234.51 0.003
March 20, 2014 10.8 6.2 1.5 76.38 234.51 0.003
March 21, 2014 10.8 6.4 1.8 70.83 217.47 0.003
March 26, 2014 11.6 7.25 11 4.7 0.8 61.11 187.63 0.002
April 4, 2014 12.4 6.2 1 76.38 234.51 0.003
April 10, 2014 13 6.4 0.8 70.83 217.47 0.003
April 17, 2014 13.5 6.4 0.8 102.78 315.57 0.004
April 25, 2014 13.6 6.4 1 65.28 200.43 0.002
May 4, 2014 16.1 6.4 1.5 72.22 221.74 0.003
May 6, 2014 16.1 6.6 1.5 75 230.28 0.003
May 9, 2014 16 6.2 1 77.78 238.81 0.003
May 22, 2014 18.3 6.2 6 65.28 200.43 0.002
May 27, 2014 18.3 6 6 72.22 221.74 0.003
June 12, 2014 19.1 6.1 >6 63.89 196.17 0.002
June 26, 2014 7.24 8.3 3.7 1 72.22 221.74 0.003
July 3, 2014 21 6.2 1.5 70.83 217.47 0.003
July 10, 2014 21.3 6.2 0.8 72.22 221.74 0.003
July 17, 2017 22.6 6.2 1 66.67 204.70 0.002
July 25, 2014 22 6.2 1 76.39 234.54 0.003
July 31, 2014 21.9 6 1.5 61.11 187.63 0.002
August 7, 2014 22.7 75 230.28 0.003
August 14, 2014 23 6.2 1.5 68.06 208.97 0.002
August 22, 2014 22.7 6.2 1.5 68.06 208.97 0.002
August 28, 2014 22.9 6.1 1 62.5 191.90 0.002
September 4, 2014 7.67 21.9 6.1 11 4 1.5 70.83 217.47 0.003
September 10, 2014 21.9 6.2 1.5 56.94 174.83 0.002
September 24, 2014 21.8 6.2 1.5 66.67 204.70 0.002
September 28, 2014 20.4 6 101.39 311.30 0.004
October 5, 2014 19.6 6 75 230.28 0.003
October 12, 2014 19.5 6 69.44 213.21 0.002
October 16, 2014 18.6 6 93.06 285.73 0.003
October 22, 2014 17.9 6.1 1.5 76.39 234.54 0.003
October 30, 2014 16.5 5.8 1.5 94.44 289.97 0.003
November 6, 2014 15.4 6 2 134.72 413.64 0.005
November 13, 2014 14.1 6 2.5 69.44 213.21 0.002
November 19, 2014 13.6 5.8 3 59.72 183.36 0.002
November 27, 2014 13.3 6 2 123.61 379.53 0.004
December 18, 2014 6.76 37.4 17.5 91.67 281.46 0.003
January 5, 2015 11.4 6.2 12 2
January 8, 2015 10.9 6.2 16 2
January 15, 2015 11.7 6 3
January 23, 2015 12.4 6.2 16 2
January 29, 2015 12.1 6.2 12 1.5
February 5, 2015 12.4 6 >3
February 20, 2015 13.2 6.2 1.5
February 27, 2015 13.3 6 2
March 5, 2015 12.9 6 0.8
March 12, 2015 7.53 201 92 13.5 7.23 32.3 11.7 1
March 19, 2015 13.7 6.4 2.5
March 26, 2015 12.7 6.2 0.8
April 1, 2015 12.9 6.2 1
April 9, 2015 14.5 6.2 0.8
Average 171.49 0.002
\\bbyfs1.kwl.ca\0000-0999\0700-0799\744-037\400-Work\WWTPEffluent\2017-05-17Snug Cove WWTP Flow Data.xlsx
Appendix C
SNUG COVE WWTP
FLOW, INFLUENT AND EFFLUENT DATA
Per Capita Flow
(L/c/d) @ population
of
Per Capita Flow
(L/c/s) @
population of
pH TSS (mg/L)
BOD
(mg/L)
Temp.
deg.C pH
TSS
(mg/L)
BOD
(mg/L)
Nitrate/
Nitrite
(mg/L)
Ammonia
(N-NH4)
(mg/L)
TKN
(mg/L)
Total
Phosphorous
(mg/L as P) 469Date
Influent Effluent
Average Flow
(L/min)
Recalibrated
Flow from
FlowWorks (L/d)
Flow Works Date as of April 16, 2016
April 16, 2015 14.6 6.2 1.5 64,448 137.4 0.002
April 24, 2015 14.9 6.6 2 74,234 158.3 0.002
April 30, 2015 15.8 6.4 1 65,711 140.1 0.002
May 7, 2015 16.1 6.4 1 64,618 137.8 0.002
May 14, 2015 17.2 6.6 18.3 1 78,050 166.4 0.002
May 21, 2015 18.9 6.4 1.5 71,338 152.1 0.002
May 28, 2015 19 6.5 1 78,872 168.2 0.002
June 4, 2015 19.6 6.6 1 81,566 173.9 0.002
June 11, 2015 20.6 6.7 1 82,730 176.4 0.002
June 18, 2015 21.4 6.5 8.7 3.2 1 81,842 174.5 0.002
June 25, 2015 21.4 6.8 1.5 82,340 175.6 0.002
July 2, 2015 23 6.6 1.5 77,678 165.6 0.002
July 9, 2015 23.3 6.7 1.5 77,856 166.0 0.002
July 16, 2015 23.1 6.8 1 70,240 149.8 0.002
July 22, 2015 23.1 6.8 <3 1.5 68,624 146.3 0.002
July 29, 2015 6.6 1.5 75,832 161.7 0.002
August 5, 2015 23.1 6.8 1.5 76,424 162.9 0.002
August 10, 2015 23.4 6.6 <3 1.5 74,234 158.3 0.002
August 14, 2015 23.3 84,092 179.3 0.002
August 20, 2015 23.1 6.6 1.5 77,421 165.1 0.002
August 28, 2015 22.7 6.8 1.5 82,937 176.8 0.002
September 3, 2015 21.1 7.11 <3 2.7 1.5 76,626 163.4 0.002
September 10, 2015 20.8 6.6 1.5 76,419 162.9 0.002
September 13, 2015 21.2 6.6 1.5 72,218 154.0 0.002
September 17, 2015 20 79,890 170.3 0.002
September 20, 2015 19.5 6.6 1.5 101,059 215.5 0.002
September 24, 2015 19.2 90,704 193.4 0.002
September 28, 2015 19.5 6.6 1 67,634 144.2 0.002
October 8, 2015 19.3 6.4 1 69,826 148.9 0.002
October 15, 2015 18.8 6.6 1 79,364 169.2 0.002
October 19, 2015 6.8 >3 64,835 138.2 0.002
October 22, 2015 18.7 6.6 10 6 74,846 159.6 0.002
October 29, 2015 17.6 6.6 1 85,964 183.3 0.002
November 3, 2015 15.3 6.6 5 88,873 189.5 0.002
November 11, 2015 14.5 6.6 1 78,829 168.1 0.002
November 19, 2015 13.6 6.8 3 74,046 157.9 0.002
November 27, 2015 13.4 6.6 1 61,800 131.8 0.002
December 10, 2015 7.15 11.5 16 102,109 217.7 0.003
December 11, 2015 12.5 6 1.5 99,030 211.2 0.002
December 18, 2015 12.7 6 3 106,969 228.1 0.003
December 31, 2015 12 6 1.5 62,581 133.4 0.002
January 6, 2016 11.2 6.2 1.5 59,069 125.9 0.001
January 14, 2016 11.2 6.4 2 89,274 190.3 0.002
January 21, 2016 11.3 6.2 3 124,004 264.4 0.003
January 28, 2016 11.1 6.77 6.4 >3 151,209 322.4 0.004
February 1, 2016 11.3 6.6 3 86,318 184.0 0.002
February 4, 2016 11.5 6.6 >3 97,570 208.0 0.002
February 11, 2016 12.4 6.7 >3 83,369 177.8 0.002
February 18, 2016 12 6.4 6 112,281 239.4 0.003
February 22, 2016 6.7 9.7 >6 73,300 156.3 0.002
February 25, 2016 12.4 6.4 >6 68,049 145.1 0.002
March 3, 2016 12.8 6.4 >6 97,088 207.0 0.002
March 10, 2016 13 6.6 6 125,967 268.6 0.003
March 14, 2016 12.6 6.99 11 4 2.5 94,431 201.3 0.002
March 17, 2016 12.2 1 73,422 156.6 0.002
March 24, 2016 13.6 6.4 1 84,421 180.0 0.002
March 28, 2016 14.2 6.4 3 87,952 187.5 0.002
March 31, 2016 14.3 6.5 0.8 88,944 189.6 0.002
April 4, 2016 15.6 64,998 138.6 0.002
April 7, 2016 15.3 6.4 0.8 71,774 153.0 0.002
April 11, 2016 15.5 6.4 0.8 90,838 193.7 0.002
April 14, 2016 14.8 6.6 1.5 87,880 187.4 0.002
April 18, 2016 16.1 6.6 0.8 63,888 136.2 0.002
April 21, 2016 17 6.6 0.6 65,718 140.1 0.002
April 25, 2016 17 6.4 21.2 10.5 0.6 59,617 127.1 0.001
May 2, 2016 17.9 6.6 3 68,022 145.0 0.002
May 9, 2016 18.8 6.6 1 69,308 147.8 0.002
May 19, 2016 19.4 6.4 1 70,830 151.0 0.002
May 23, 2016 19.7 3 73,661 157.1 0.002
May 26, 2016 19.8 6.6 1.5 67,676 144.3 0.002
May 30, 2016 32.3 5.85 65,733 140.2 0.002
June 13, 2016 7.52 17.2 3.9 7.23 63,353 135.1 0.002
July 28, 2016 7.1 80,085 170.8 0.002
September 1, 2016 22.8 6.6 10 6 81,677 174.2 0.002
September 8, 2016 22.1 6.4 8.6 2.9 <10 0.5 69,695 148.6 0.002
September 16, 2016 21.3 6.4 <5 0.5 78,770 168.0 0.002
September 23, 2016 20 6.8 5 0.5 91,905 196.0 0.002
September 30, 2016 19.4 7 5 0.5 88,449 188.6 0.002
October 6, 2016 19 6.6 5 0.5 89,787 191.4 0.002
October 13, 2016 7.18 17.2 6.4 20 5 0.5 113,147 241.3 0.003
October 20, 2016 15.7 6.4 5 0.5 116,398 248.2 0.003
October 27, 2016 16.2 6.4 5 0.5 112,350 239.6 0.003
November 3, 2016 14.9 6.6 <5 6 134,998 287.8 0.003
November 10, 2016 15.5 6.6 5 1 94,775 202.1 0.002
November 17, 2016 15.5 7.36 5.1 5 0.5 69,728 148.7 0.002
November 24, 2016 14.5 6.4 5 0.5 121,835 259.8 0.003
December 3, 2016 13.3 6.6 1 98,472 210.0 0.002
December 17, 2016 12.3 6.4 1 57,347 122.3 0.001
December 23, 2016 12 6.4 0.8 88,977 189.7 0.002
December 30, 2016 11 6.2 1 97,714 208.3 0.002
February 2, 2017 10.5 7.4 10.3 5 2.5 61,352 130.8 0.002
February 8, 2017 9.9 6.4 <5 1 67,260 143.4 0.002
February 16, 2017 9.8 6.8 <5 6 140,894 300.4 0.003
February 23, 2017 10.8 6.6 <5 1 71,517 152.5 0.002
Calculated Avg (all Data): 251 288 Average From FlowWorks Data Only: 83,104 177.19 0.002
Design Values: 275 400 Maximum Daily Flow: 151,209 322.4
Minimum Daily Flow: 57,347 122
Summer Daily Average (Apr-Sept 2015) 76,987 164
Winter Daily Average (Oct 2015-Mar 2016) 88,191 188
Summer Daily Average (Apr-Sept 2016) 73,694 157
Winter Daily Average (Oct 2016 -Feb 2017) 96,034 205
\\bbyfs1.kwl.ca\0000-0999\0700-0799\744-037\400-Work\WWTPEffluent\2017-05-17Snug Cove WWTP Flow Data.xlsx
Appendix C
Appendix D
Distillery Wastewater Flows and Loads Email Dated: March 28, 2017
1
Karen Sutherland
From: Bob Robinson <[email protected]>
Sent: April-04-17 8:57 AM
To: Karen Sutherland
Subject: FW: DBI Water and Wastewater
604-947-4255
The information transmitted herein is confidential and may contain privileged information. It is intended solely for the person or entity to which it
is addressed. Any review, retransmission, dissemination, taking of any action in reliance upon, or other use of this information by persons or
entities other than the intended recipient is prohibited. If you received this in error, please notify me and delete or destroy all copies.
From: Miguel K [mailto:[email protected]]
Sent: Monday, April 3, 2017 3:49 PM
To: Bob Robinson <[email protected]>
Cc: Daniel Martin <[email protected]>; Kristen Watson <[email protected]>; Annette Frischmann
<[email protected]>; Rafael Santa Ana <[email protected]>
Subject: RE: DBI Water and Wastewater
Numbers are correct but a bit misunderstood. Let me detail my calculations:
I assume 3 batches per week at peak production.
Main full load process water has COD 3000mg/L and equivalent BOD 1800mg/L and TSS 400mg/L. I will be
doing side-streaming (i.e. removing some of the heaviest load process water at the source) so loads might
actually be lower, but rounding up. There will be 900L x 3 batches per week for a total of 2700L/week of
process water with these loads.
There is also about 1000L/batch of process water for cleaning, with loads of COD 1200mg/L and BOD
700mg/L, which is another 3000L/week at these lower loads.
I will install a sedimentation and equalization tanks to mix this process water with the cleaning water and will
actually be releasing 2700+3000=5700L/week which is around 815L of combined effluent with a combined
load of COD 1.671kg and BOD 0.994kg per day. For the COD/BOD @ peak you have in your table, I didn't
take into account the difference in process vs cleaning water loads and was rounding up for safety.
I include my calculation table below.
2
Thank you,
Miguel Kabantsov
+1.778.895.9622
On April 3, 2017 at 2:27 PM Bob Robinson <[email protected]> wrote:
Hi Bob,
I’m been looking at the expected data provided by the Distillery.
• They mentioned a 3kg BOD/d daily load but I can’t figure out where that comes from if the peak flow is
850L/d. (3000 mg/L * 850 L/d * 10-6kg/mg) = 1.53 kg/d
• They also mention 1070 mg BOD @ 850L load. Again, not sure if the BOD concentration is lower at
peak flows due to higher amount of wash water.
Can you forward my questions with the table below and ask them to confirm how they calculated 3-4
kg/d BOD. Thanks.
604-947-4255
3
The information transmitted herein is confidential and may contain privileged information. It is intended solely for the person
or entity to which it is addressed. Any review, retransmission, dissemination, taking of any action in reliance upon, or other use
of this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please
notify me and delete or destroy all copies.
From: Miguel Kabantsov [mailto:[email protected]]
Sent: Friday, March 31, 2017 9:27 AM
To: Bob Robinson <[email protected]>
Cc: Daniel Martin <[email protected]>; Antonio Colin <[email protected]>; james
young <[email protected]>; Lari Llevadot <[email protected]>; Rafael
Santa Ana <[email protected]>; Kristen Watson <[email protected]>; Annette
Frischmann <[email protected]>
Subject: Re: DBI Water and Wastewater
Hi Bob,
I see the BOD/COD as parameters of the treatment plant that should be already known,
all I'm looking for is a number (a maximum in good faith) that I should not exceed so I
can then plan accordingly. It's not about the impact of the distillery, is more about
figuring out plant capacity. I'm not really happy about being charged to figure out this
treatment plant maximum but was told that there will be no permit if I don't pay, so what
can I say?
The numbers I'm calculating are based on industry standards for average loads, I've
talked to other distillers as well and they confirm. Having said that, I don't want to be
limited by these, again I'm looking for a number to hit because my loads are actually
variable and I have flexibility. Also I'd like to know what possibility I have of expanding
in the future, so I definitely don't want the engineers to think that these are set in stone
numbers and instead have them think on plant maximum numbers and what would
happen if we exceded them later on.
Also since we are going to have to have a 4" main, we didn't pay for the water
connection yesterday, as it was indicated as 1" in the form. What will the process to hook
up a 4" main look like?
I'm looking for all the help I can get on these Bob, hopefully the project is still viable
after all.
4
Miguel Kabantsov
+1.778.895.9622
On Mar 30, 2017, at 12:22, Bob Robinson <[email protected]> wrote:
Miguel I have been in contact with an engineering company with regards to the
distillery . I have received a quote for $ 781.00 to assess the impact of the
distillery on our treatment plant. This will be added to the permit for the sewer
hookup. Are you fine with this? One question would be where did these
numbers come from?
604-947-4255
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From: Miguel K [mailto:[email protected]]
Sent: Tuesday, March 28, 2017 4:06 PM
To: Kristen Watson <[email protected]>; Annette Frischmann
<[email protected]>; Bob Robinson <[email protected]>
Cc: Daniel Martin <[email protected]>; Antonio Colin
<[email protected]>; james young
<[email protected]>; Lari Llevadot
<[email protected]>; Rafael Santa Ana
Subject: RE: DBI Water and Wastewater
My answers inline.
On March 28, 2017 at 9:54 AM Bob Robinson <[email protected]> wrote:
Miguel
5
Below is a list of questions that needs to be answered before Public Works will issue a permit to connect to the sewer. this will help us figure out the impact of the distillery waste on the WWTP:
1. Will distillery waste be separate from other waste (i.e. toilets)?
Yes, completely separate.
2. Will there be wastewater other than distillery waste? I.e. – are they planning on having a kitchen and serving food?
Yes, there is a kitchen and we are planning on having a grease trap for this.
Regarding distillery waste only:
3. Will there be holding tanks for the distillery waste? What is the plan for discharging to the sewer system? Discharges need to be controlled to limit system surges.
Yes, there will be 3 equalizing tanks for pH, temp and sediment. I plan to monitor and log pH, temp and COD in the equalized tanks, then discharge a consistent amount of wastewater daily to contain surges. Wastewater will have a pH of 6.5-8.5, temp 20-40°C, COD of around 3000mg/L and equivalent BOD of around 1800mg/L.
3. Flows:
a. Expected average daily flow (m3/d) and peak flow (m3/d) discharged. At peak production, the expected daily flow will be around 850L with 1790mg of COD load or 1070mg of BOD equivalent load. No peak surges since the flow is managed.
Or
b. Number of expected batches/month and Volume of wastewater/batch. At peak production, I will have 12 batches/month and 1900L of wastewater/batch or around 23m3/mo.
5. BOD of wastewater (mg/L) 1070mg at 850L daily load.
6. COD of wastewater (mg/L) if available 1790mg at 850L daily load.
7. TSS of wastewater (mg/L) 400mg at 850L daily load.
8. pH should be controlled to between 6.5 and 8.5 (TBC w/ Bowen); How will pH be controlled? I will monitor and
6
log pH in the equalizing tanks to fit this range before discharge.
604-947-4255
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From: Miguel Kabantsov [mailto:[email protected]] Sent: Wednesday, March 8, 2017 10:34 AM To: Bob Robinson <[email protected]> Cc: Daniel Martin <[email protected]>; Rafael Santa Ana <[email protected]>; Antonio Colin <[email protected]>; james young <[email protected]>; Lari Llevadot <[email protected]> Subject: Re: DBI Water and Wastewater
Hello Bob,
I realize after the fact that I had included non-process water in the calculations and it's really a 3-4kg daily load not 6kg like a mentioned yesterday. 4kg a day would be operating at maximum capacity which I don't expect to be in the first year. So it's closer to a 3kg a day BOD load.
Also forgot to ask, is there a recent water quality report available? I'm planing the filtering system and it would be helpful to know what kind of water is available at the cove. I imagine you have the water quality tested frequently.
7
Thank you for the meeting yesterday,
Miguel Kabantsov
+1.778.895.9622
On Mar 2, 2017, at 10:55, Rafael Santa Ana <[email protected]> wrote:
Hi Daniel,
We have looked into some of the questions from the municipality regarding civil works. We believe to have strategies in place for all concerns.
Agreed, a meeting prior to submission would be ideal. Would next Tuesday work well for everyone?
We should have a round of all mechanical, electrical, structural and architectural drawings with us to review.
Best,
Rafael Santa Ana Architect AIBC MRAIC
Principal
RSAAW
Rafael Santa Ana Architecture Workshop
1691 Berkley Rd
North Vancouver BC
Canada V7H 1Y9
8
t 604.725.0341
rsaaw.com
The content of this communication and any attachments may contain confidential and/or legally privileged information intended solely for the use of the individual or entity to whom it is addressed. If you are not the intended addressee, you are hereby notified that any disclosure, distribution, or other action relating to this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify Rafael Santa Ana Architecture Workshop immediately by responding to this communication and then deleting it from your system.
On Mar 2, 2017, at 10:29 AM, Daniel Martin <[email protected]> wrote:
Hi Rafael,
Yes, all looks good from the ADP. I’ll be drafting the DP either Friday or early next week.
Regarding the BP, Bob is still waiting for information on the sewer. In addition, he had questions about the basement. He says that in lower Snug Cove the water table can be quite high, so building a full height basement may mean that you will have to have a pump running to keep the basement dry. Have you looked into this?
I don’t know that we have issued a BP in stages before. I’ll look into our Building Bylaw and see what it allows us to do.
I would still recommend if you are able to come over to have a meeting with Konrad and Public Works in advance of submitting your Building Permit so we can discuss logistics including how construction will take place.
9
Daniel Martin
Island Community Planner
Bowen Island Municipality 981 Artisan Lane, Bowen Island, BC V0N 1G2 [email protected] 604-947-4255
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The information transmitted herein is confidential and may contain privileged information. It is intended solely for the person or entity to which it is addressed. Any review, retransmission, dissemination, taking of any action in reliance upon, or other use of this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please notify me and delete or destroy all copies.
From: Rafael Santa Ana [mailto:[email protected]] Sent: March 2, 2017 10:25 AM To: Daniel Martin <[email protected]> Cc: Antonio Colin <[email protected]>; james young <[email protected]>; Lari Llevadot <[email protected]> Subject: DBI BP
Hi Daniel,
I’m heard news from Miguel that the DP seems to be in the final stages of approval which is great to hear!
As he review some last minute changes to the basement and structural implications, I have to ask if the municipality could consider phasing
10
Building Permits so that the contractor can begin fencing and excavation sooner than later.
Our plan was to submit a building permit application next week, but we are likely 2 weeks late with that target. Contractor however, anticipated March 21st as the ground break milestone. What would you recommend?
Best,
Rafael Santa Ana Architect AIBC MRAIC
Principal
RSAAW
Rafael Santa Ana Architecture Workshop
1691 Berkley Rd
North Vancouver BC
Canada V7H 1Y9
t 604.725.0341
rsaaw.com
The content of this communication and any attachments may contain confidential and/or legally privileged information intended solely for the use of the individual or entity to whom it is addressed. If you are not the intended addressee, you are hereby notified that any disclosure, distribution, or other action relating to this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify Rafael Santa Ana Architecture Workshop immediately by responding to this communication and then deleting it from your system.