Regional Service Through Unity… Meeting our Region’s Needs Today and Tomorrow

NTMWD WATER AND WASTEWATER PARTNERING MEETINGS

September 19, 2018

CLICK TO EDIT MASTER TITLE STYLEOUR VISION, MISSION AND GOALS

2

VISION: Regional Service Through Unity – Meeting Our Region’s Needs Today and Tomorrow

MISSION: Provide high quality and dependable water, wastewater and solid waste services in a cost efficient manner

Goal 1: Provide Superior Water, Wastewater and Solid Waste ServicesToday

Goal 2: Secure the Future for Water, Wastewater and Solid Waste Supplies and Services

Goal 3: Maintain Strong Relationships with Member Cities, Customers, Partners and thePublic

Goal 5: Take Care of Our People

Goal 4: Maintain our Infrastructure to Provide Reliable Service Today and Tomorrow

AGENDA

Water Topics• Water System Announcements - Billy George• Water Supply Update - Billy George• New Water Budgeting Methodology - Erik Felthous • 72” Water Transmission Main Break Update - Billy George• Water Quality Effort Update - Galen Roberts• Source Water Protection - Galen Roberts

Water and Wastewater Topics• Public Relations Update - Janet Rummel• Water Resources/Public Education Update - Denise Hickey

Wastewater Topics• Announcements - Jenna Covington

• Wastewater Field Operations Community of Practice Meeting• SSOI for all NTMWD Conveyance infrastructure

• Sister Grove Water Resource Recovery Facility Update• Permitting - R.J. Muraski• Public Outreach - Jeff McKito• Preliminary Engineering Scope and Status - Bret Ellis

• UEFIS and South Mesquite Regional Capacity Assessment and Assurance - Shela Chowdhury• Frisco Plants Update - Ken Wesson

WATER PARTNERING MEETING

Billy George Water System Announcements

Draft Fannin Co. AgreementANNOUNCEMENTS

• Zeke Campbell is new NTMWD Water System Manager• New Water Operations Building• 2019 chlorine maintenance +• Regulatory Update:

– EPA Air Group: Meeting on 8/14/2018 to discuss NTMWD’s riskmanagement Inspection corrective action plan

– TCEQ Enforcement: Meeting on 9/6/2018 to discuss release ofchloraminated water from Rowlett 1 delivery point

– Dam safety update

WATER PARTNERING MEETING

Billy George Water Supply Update

Reservoir

Conservation Pool

ElevationCurrent

Elevation Up/Down % Full

Lavon30% 492.0’ 487.98’ -4.02’ 80.7%

Chapman15% 440.0’ 435.79’ -4.21’ 73.3%

Tawakoni8% 437.5’ 435.25’ -2.25’ 90.7%

Texoma28% 617.0’ 616.53’ -0.47’ 98.6%

RESERVOIR ELEVATIONS – SEPTEMBER 19, 2018

DAILY WATER CONSUMPTION

DAILY WATER CONSUMPTION

10

DEMAND & SUPPLY OUTLOOK

WATER PARTNERING MEETING

Draft Fannin Co. AgreementADDITIONAL SOURCES OF WATER: BRIDGING THE GAP

Lake Fork Contract Water• NTMWD has 40,000 acre-feet per year under contract (20 year

term) with Sabine River Authority in Lake Tawakoni and Lake Fork• NTMWD contracting with City of Dallas to transport Lake Fork

Water (20,000 ac*ft/year)• Transport schedule must be approved by City of Dallas• Anticipate NTMWD Board approval at September Board Meeting

Trinity River Authority Purchase (Main Stem Pump Station)• Purchase up to 56,050 acre-feet per year raw water• Divert at Main Stem Pump Station and deliver to NTMWD Wetlands• 50-year term with one 50-year extension• Anticipate NTMWD Board approval at September Board Meeting

EXISTING & PLANNED RAW WATER SUPPLIES

Existing:• Lavon Lake• Lake Texoma• Lake Tawakoni• Chapman Lake• Reuse/Wetland• Lake Bonham

Future:• Bois d’Arc Lake

WATER PARTNERING MEETING

Erik Felthous New Water Budgeting Methodology

16

PRELIMINARY ANNUAL MINIMUM

FY19 TRADITIONAL

METHOD

FY19 PROPOSED

METHODINCREASE/

(DECREASE)

MEMBER CITY 3.06 2.92 (0.14)

Allen 6,011,208 18,394,296 17,552,727 (841,569)

Farmersville 280,467 858,229 818,964 (39,265)

Forney 1,849,256 5,658,723 5,399,828 (258,896)

Frisco 10,352,662 31,679,146 30,229,773 (1,449,373)

Garland 13,721,955 41,989,182 40,068,109 (1,921,074)

McKinney 11,731,544 35,898,525 34,256,108 (1,642,416)

Mesquite 8,297,666 25,390,858 24,229,185 (1,161,673)

Plano 26,719,809 81,762,616 78,021,842 (3,740,773)

Princeton 521,799 1,596,705 1,523,653 (73,052)

Richardson 11,019,311 33,719,092 32,176,388 (1,542,704)

Rockwall 3,529,281 10,799,600 10,305,501 (494,099)

Royse City 492,064 1,505,716 1,436,827 (68,889)

Wylie 1,877,558 5,745,327 5,482,469 (262,858)

Total 96,404,580 294,998,015 281,501,374 (13,496,641)-5%

CLICK TO EDIT MASTER TITLE STYLEBUDGET METHODOLOGY – FY 17 COMPARISON 100%

CityFlow Traditional (Mil $) Proposed (Mil $)

Actuals (%) Net Annual Payment After Rebate

Net Annual Payment After Rebate Over All Benefit

Allen 92.6% $15.026 $14.804 $0.222

Farmersville 63.4% $ 0.667 $ 0.660 $0.007

Forney 94.8% $ 4.639 $ 4.569 $0.070

Frisco 94.8% $25.652 $25.265 $0.387

Garland 73.9% $33.248 $32.846 $0.402

McKinney 97.9% $27.137 $26.716 $0.421

Mesquite 67.8% $19.897 $19.674 $0.223

Plano 82.3% $65.664 $64.789 $0.875

Princeton 95.7% $ 1.221 $ 1.202 $0.019

Richardson 73.5% $26.680 $26.359 $0.321

Rockwall 75.2% $ 8.088 $ 7.989 $0.099

Royse City 98.1% $ 1.131 $ 1.113 $0.018

Wylie 92.3% $ 4.690 $ 4.622 $0.068

Total $233.740 $230.608 $3.13217

CLICK TO EDIT MASTER TITLE STYLEBUDGET METHODOLOGY – FY 18 COMPARISON 100%

CityFlow Traditional (Mil $) Proposed (Mil $)

Actuals (%) Net Annual Payment After Rebate

Net Annual Payment After Rebate Over All Benefit

Allen 96.7% $16.632 $16.392 $0.240

Farmersville 72.6% $ 0.749 $ 0.738 $0.011

Forney 105.8% $ 5.184 $ 5.110 $0.074

Frisco 107.4% $28.730 $28.321 $0.409

Garland 80.6% $37.085 $36.536 $0.549

McKinney 111.2% $30.401 $29.970 $0.431

Mesquite 67.9% $22.001 $21.669 $0.332

Plano 81.6% $72.314 $71.246 $1.068

Princeton 110.1% $ 1.370 $ 1.351 $0.019

Richardson 79.3% $29.720 $29.279 $0.441

Rockwall 115.2% $ 9.462 $ 9.329 $0.133

Royse City 110.1% $ 1.264 $ 1.246 $0.018

Wylie 94.5% $ 5.178 $ 5.103 $0.075

Total $260.090 $256.290 $3.80018

WATER PARTNERING MEETING

Billy George72” Water Transmission Main Break Update

72-INCH PIPELINE FAILURE AND REPAIR IN RICHARDSON, TEXAS

Outline

• Pipeline Background

• NTMWD Operations Response

• Environmental Impacts of Release

NORTH GARLAND PIPELINE SYSTEM

Prestressed Concrete Cylinder Pipe (PCCP)

NORTH GARLAND PIPELINE SYSTEM

2017

NORTH GARLAND PIPELINE SYSTEM

1995

NORTH GARLAND PIPELINE SYSTEM

Dated 1998

PIPELINE BACKGROUND

Embedded Cylinder - Prestressed Concrete Cylinder Pipe (EC-PCCP)

PIPELINE BACKGROUND72” 60”

Fabricated 1980 1966 (Section II)

Designer Freese and Nichols, Inc. Forrest & Cotton, Inc.

Manufacturer Gifford-Hill-American, Inc. Gifford-Hill-American, Inc.

Type AWWA C301 PCCP AWWA C301 PCCP

Contractor Cullum Construction A & A Construction

Pressure Class 75 psi 100 psi

Approx. Cover 7’ (1980) 4’ (1965)19’ (1979)

Life Expectancy 50-100 years* 50-100 years*

*First PCCP manufactured in United States in 1953

72-INCH PIPELINE FAILURE AND REPAIR IN RICHARDSON, TEXAS

Outline

• Pipeline Background

• NTMWD Operations Response

• Environmental Impacts of Release

NTMWD OPERATIONS RESPONSE

Thursday, August 30th

2:50pm Richardson reports main break at 4517 Crystal Mountain Dr.Suspected to be in 60” main

3:24pm NTMWD personnel arrive on scene3:30pm All North Garland Pumps de-energized3:35pm Isolation of 60” main started3:36pm NTMWD management notified3:50pm Control Room notifies/updates Richardson & Garland staff4:15pm Maintenance arrives on scene & Pump #9 started to verify

broken transmission main7:52pm NTMWD initiated investigation of break on 72” main9:00pm Pipe manufacturer contacted8:45pm Break confirmed on 72” main. Isolation of 72” began9:30pm 72” main isolated and 60” placed into service

10:30pm Pipe exposed

NTMWD OPERATIONS RESPONSE

Friday, August 31st

4:25am Pipeline exposed, not completely excavated. Pipe manufacturer arrives on scene

11:00am Conference call with affected cities servednoon NTMWD requested curtailment outdoor watering

Saturday, September 1st

2:00am Trench box installed9:32am Daily Operations update e-mailed to affected cities1:00pm 275-ton crane arrived1:30pm Began removal of damaged pipe section7:00pm Pipe preparation work for installation of new pipe begins11:20pm First pipe section set

NTMWD OPERATIONS RESPONSE

Sunday, September 2nd

12:20am Second pipe section set2:45am Pipe sections aligned and welding begins9:29am Daily Operations update e-mailed to affected cities4:00pm Welding finishes5:00pm 72” pipe pressurized5:20pm Leak observed at gasketed joint9:45pm Welding begins to repair leak

Monday, September 3rd

9:53am Daily Operations update e-mailed to affected cities3:20pm 72” pipe pressurized. No leaks observed4:15pm 72” pipe returned to service7:24pm NTMWD lifted outdoor watering curtailment request

NTMWD OPERATIONS RESPONSE

Tuesday, September 4th

11:24am Final Daily Operations update emailed to affected citiesGrouting of pipe and cleanup begins

Future Work Restoration of damaged paving, mail boxes and grass Drain 72” pipeline for installation of internal butt strap during

winter Forensic investigations Internal inspections

72-INCH PIPELINE FAILURE AND REPAIR IN RICHARDSON, TEXAS

Outline

• Pipeline Background

• NTMWD Operations Response

• Environmental Impacts of Release

RELEASE OF WATER FROM 72-INCH WATER MAIN

Environmental Impact of Release

• 490 dead fish due to chlorinated water

• Species include Bass, Carp, Catfish, Shad & Sunfish• Fish collected were disposed of at 121 RDF• No other impacts observed (Turtles, Birds, etc.)• Environmental impact reported to TCEQ

Date Collected SpeciesFriday, 8/31 322 VariousSaturday, 9/1 153 VariousSunday, 9/2 15 VariousMonday, 9/3 0Tuesday, 9/4 0

NTMWD WATER AND WASTEWATER PARTNERING MEETINGS

Galen RobertsWater Quality Effort Update

Purpose & IntroductionsDeveloped three scopes of work:

• CDM Smith ― Water quality data review (2015-2018)― Possible additional water quality sampling― Bench scale testing for DBP formation― Evaluate chlorine dosing― Comprehensive look at transmission system quality program

• Carollo ― BAF implementation schedule and outcomes― Technical feasibility and costs of GAC― Current and planned ammonia dosing locations

• FNI ― Best practices toolbox for cities

EVALUATIONS AND STUDIES

Will share detailed results of these studies at upcoming Transmission System and Water

Partnering meetings

2018 MAINTENANCE PERIOD DATA REVIEW

Compared relevant raw and finished water data from 2018 maintenance period to previous three years

Similarities:• Temp., TOC, Turbidity, UV254, and pH• Cl residual leaving Wylie• Flows at Wylie WTP

Differences:• Ozone dose was slightly lower• Higher Cl dose was needed to achieve target residual• Slightly higher residuals observed at some transmission reservoirs

2018 MAINTENANCE PERIOD DATA REVIEW

0

1

2

3

4

5

6

Chl

orin

e R

esid

ual (

mg/

L)

Cl2 Residuals at Reservoirs During Maintenance Periods

2015 2016 2017 2018

Median Chlorine Residuals During Each Free Chlorine Maintenance Period (mg/L)

Site Location 2015 2016 2017 2018

Tap 1 (HSPS 1-1 at Plant 1) 3.87 4.05 NA NA

Rockwall 1 (HSPS Rockwall at Plant 1) 3.32 3.92 NA 3.79

Tap 2 (HSPS 2-1/2-2/2-3) 3.77 NA 3.86 3.43

Rockwall 2 (SPS WRF) 3.52 NA 4.07 4

HSPS 3-1 3.77 3.88 3.87 3.94

0

2

4

6

8

10

12

2/24 3/1 3/6 3/11 3/16 3/21 3/26 3/31 4/5 4/10

Chl

orin

e D

osag

e (m

g/L

Cl 2)

Average Chlorine Dosage DuringMaintenance Periods

2015 mg/L Chlorine2 2016 mg/L Chlorine2

2017 mg/L Chlorine2 2018 mg/L Chlorine

Purpose & IntroductionsOngoing analysis:

• Why a higher Cl dose was needed toachieve target residual

• Relationship between residuals inreservoirs and city systems for 2018

• Flows in transmission system

• Potential for speciation in 2018

• Potential for reducing residual duringfuture maintenance periods

2018 MAINTENANCE PERIOD DATA REVIEW

Purpose & IntroductionsReviewed current and planned NTMWD monitoring activities to identify potential for improvement:

• Current monitoring greatly exceeds regulatory requirements

• Identified a potential to implement early warning nitrification system

• Identified a few key monitoring locations may provide greater understanding of system

• Recommended increased coordination with cities

MONITORING RECOMMENDATIONS

RESIDUAL ADJUSTMENT SITE ANALYSIS

Performed high-level analysis of implementing residual disinfectant dosing facilities in NTMWD distribution system and delivery points

Compared:• Current operations• Regional adjustment (4 sites)• Adjustment at individual delivery points (15 sites)

Initial findings:• Current operations is most cost effective• Relying on adjustment facilities comes with additional risks• Need to consider other operational challenges for these facilities

• (e.g. personnel & training, chemical delivery traffic, space on site, etc.)

Purpose & IntroductionsExplored options for expediting conversion to BAF and ensuring chlorine and ammonia feeds will facilitate conversion and operation

• Found that BAF could theoretically be expedited by a few months

• Identified temporary feed points and other critical components of conversion

• Expediting conversion comes with significant risks/considerations:

― Requires temporary modifications (i.e. cost)― Rely on Ozone for CT for extended period― Manganese release from filters― Could delay other critical projects

BAF AND AMMONIA FEED ANALYSIS

Purpose & IntroductionsReviewed potential options and costs associated with implementing GAC at Wylie WTP

• Full filter conversion is not feasible, analysis focused on post filtration contactors

• Capacity and costs based on target TOC and THM levels

• Used a widely accepted EPA tool for estimating costs:

GAC CONCEPTUAL ANALYSIS

Capital Costs $357 M

Yearly O&M $102 M

Purpose & Introductions

Please share thoughts and comments:

Galen Roberts groberts@ntmwd.com469-626-4637

RESOURCES FOR CITIES

WATER AND WASTEWATER PARTNERING MEETINGS

Galen RobertsSource Water Protection

NTMWD WATERSHED PROTECTION

TCEQ Source Water Protection Program

• Recognizes entities that are actively working to protect water supplies

• NTMWD fulfilled requirements for participation in the program earlier this year

• Recognition will extent to NTMWD member and customer cities

• Drinking Water Watch being updated to ‘Source Water Protection Plan – Complete’

WATER AND WASTEWATER PARTNERING MEETINGS

Janet RummelPublic Relations Update

CLICK TO EDIT MASTER TITLE STYLEPUBLIC RELATIONS UPDATEBudget/Rates Communication• Draft fact sheet/summary highlighting increases, key projects and efficiencies• Rates/value of water video nearly complete• Imagine Day Without Water, Oct. 10, 2018

Bois d’Arc Lake and other projects• Board voted on renaming at August meeting• Working on new website and print materials and branding concepts• Planning open houses this fall in Bonham, Honey Grove and Leonard• New team member Jeff McKito

– Leading public outreach for major projects including lake, new water resource recovery facility, new operations facility in Wylie

Other Activities• Follow the Flow video on wastewater treatment process now complete, online• Managing Richardson water line break response: media, social media, homeowners• Communications Committee discussion on draft communications plan for 2019 Chlorine

Maintenance• Next Water Treatment Plant tour for city officials/staff is Oct. 18

PUBLIC RELATIONS UPDATE

New Value of Water Video Preview

https://vimeo.com/ideamachinestudio/review/289584205/a8a00efa74

WATER AND WASTEWATER PARTNERING MEETINGS

Denise Hickey Water Resources/Public Education Update

WATER AND WASTEWATER PARTNERING MEETINGS

Denise Hickey Defend Your Drains

NCTCOG WATER MEETING RECAP 8/22

Defend Your Drains

Banner artwork reviewed• Group present found it

acceptable, but they asked to have same content resized and provided in high-resolution in other formats:

– Pamphlets and brochures– Door hangars– Social media

• Several cities recommended providing translated versions in Spanish, Vietnamese, and Mandarin

NCTCOG WATER MEETING RECAP 8/22

Defend Your Drains

Website Revamp - Feedback Requested• Changes in the Defend Your Drains North Texas

website are not yet active, but new site is scheduled to launch September 22.– If you were unable to preview, and would like to provide

feedback to NCTCOG on the site, you can still do so.– NCTCOG acknowledged that the website is a fluid product

and changes will be made after initial launch date.– If you have recommended changes or need to update your city

logo shown on the site, please contact Cassidy Campbell at NCTCOG via email at: ccampbell@nctcog.org

NCTCOG WATER MEETING RECAP 8/22

Defend Your Drains

Grease Interceptor Inspector Training – Two Day Session

• October 1 & 2, 2018• 8:00 am – 5:00 pm (both days)• Space limited to 25• Register early at:

http://nctcog.org/envir/events

WATER AND WASTEWATER PARTNERING MEETINGS

Denise Hickey Holiday Grease Round-Up 2018

DEFEND YOUR DRAINS

Holiday Grease Round-up• Dates set for November 26, 2018 – January 7, 2019

– If your city will be participating in this year’s Holiday Grease Roundup, please email CCampbell@nctcog.org no later than Friday, October 12, 2018

– If your city would like to use the flyer, please email CCampbell@nctcog.org with facility and collection hours. Cassidy will update and return to you.

– American BioSource is supplying the containers and removal. service.

– There are no fees to the cities to participate. Please let Cassidy know the following information

and she will coordinate with American BioSource:» How many containers» Preferred container size » Dates you would like the container to be dropped

off and picked up

» Location where you would like container dropped off

WATER AND WASTEWATER PARTNERING MEETINGS

Denise Hickey Infographics

NEW INFOGRAPHICS

57

NEW INFOGRAPHICS

58

WATER AND WASTEWATER PARTNERING MEETINGS

Denise Hickey Public Education Consultant

PUBLIC EDUCATION CONSULTANT

60

NTMWD notified on Tuesday, September 4th that EnviroMedia would be closing their office

Contracting parties were called on Tuesday

Public Notification was made on Wednesday (social media)

Moving Forward –• WFAA segments are secured and NTMWD/AgriLife will coordinate• Fall Water4Otter ISD presentations – will need to seek consultant to

carry out the coordination, presentations, post survey results– Conference call with previous EnviroMedia staff Tuesday

• NTMWD to determine best course forward for hiring new consultant and/or partnering with DWU and TRWD

AGENDA

Water Topics• Water System Announcements - Billy George• Water Supply Update - Billy George• New Water Budgeting Methodology - Erik Felthous • 72” Water Transmission Main Break Update - Billy George• Water Quality Effort Update - Galen Roberts• Source Water Protection - Galen Roberts

Water and Wastewater Topics• Public Relations Update - Janet Rummel• Water Resources/Public Education Update - Denise Hickey

Wastewater Topics• Announcements - Jenna Covington

• Wastewater Field Operations Community of Practice Meeting• SSOI for all NTMWD Conveyance infrastructure

• Sister Grove Water Resource Recovery Facility Update• Permitting - R.J. Muraski• Public Outreach - Jeff McKito• Preliminary Engineering Scope and Status - Bret Ellis

• UEFIS and South Mesquite Regional Capacity Assessment and Assurance - Shela Chowdhury• Frisco Plants Update - Ken Wesson

Regional Service Through Unity… Meeting our Region’s Needs Today and Tomorrow

WASTEWATER PARTNERING MEETING

September 19, 2018

WASTEWATER PARTNERING MEETING

63

Jenna CovingtonAnnouncements

64

Wastewater Field Operations Community of Practice Meeting

Target Audience: Field Supervisors who are overseeing wastewater operations

Topic: Grease Trap Programs

Presenter: Richard L. Statser

Date/Time: Wednesday, October 17, 2018 9-11

Location: NTMWD Training Room

65

Participation in SSOI (Sanitary Sewer Overflow Initiative) for all NTMWD Conveyance Infrastructure• Previous agreement provided enforcement protection for UEFIS

system and expired in Dec 2016

• Re-entered SSOI in Jan 2018 with expiration in Dec 2026

• Covers all NTMWD conveyance infrastructure

• Commitments• Update Overflow emergency response plan to complete forms

electronically• Condition assessment program to inspect and evaluate lift stations,

pipelines, and manholes over a 10 year period• Install Telog at each meter station to allow evaluation of peak flows

and I/I rates• Execute certain CIP projects currently underway

WASTEWATER PARTNERING MEETING

67

R.J. Muraski

Sister Grove WRRF Update -Permitting

68

May

-18

Jun-

18

Jul-1

8

Aug

-18

Sep

-18

Oct

-18

Nov

-18

Dec

-18

Jan-

19

Feb-

19

Mar

-19

Apr

-19

May

-19

Jun-

19

…

…

…

…

…

…

…

Sister Grove RWRRF Tentative PermittingTimeline

TCEQ issue Permit

2nd Notice & Publish

NTMWD Submit Permit APP

TCEQ Deems Permit Admin complete

Final Draft Permit Available

1st Notice & Application

Period Motion to Over turn Permit

Application available for public review

Technical Review Draft Permit

WASTEWATER PARTNERING MEETING

69

Jeff McKito

Sister Grove WRRF Update -Public Outreach

WASTEWATER PARTNERING MEETING

70

• Project Info on NTMWD Website• Developed Fact Sheet• New Hope City Council –

Toured Panther Creek Facility• Held Open House in June• New Hope City Council –

Presentation• New Hope National Night Out• Open House Planned for

mid-November

WASTEWATER PARTNERING MEETING

71

Bret Ellis

Sister Grove WRRF Update -Preliminary Engineering Scope and Status

The initial phase of this facility will be 16 million gallons per day (MGD) with the ability to handle 64 MGD of peak flow

• Preliminary Design (awarded January 2018)• Evaluation of wastewater treatment options is underway

• Preliminary hydraulic grade line established• On-site lift station required due ground elevation of site• Use of peak flow basins will allow treatment units to be 48 MGD

• Reduces cost - peak flow occurs a few times per year• Adds flexibility in the event of equipment outages or shutdowns

• Each process has been reviewed and alternatives narrowed to 2 or 3 • In-depth evaluation of alternatives is on-going • Processes include screening, grit removal, primary treatment,

biological treatment, filters, disinfection, solids handling, etc.

72

GENERAL STATUS UPDATESister Grove Regional Water Resource Recovery Facility

73

Step screens UV disinfection

Grit removal Disk filters

• Site Layout is in progress• Site survey is underway• Sizing of process treatment units is being determined

• Schedule for upcoming work• Conceptual site plan December 2018• Preliminary design recommendations February 2019

74

GENERAL STATUS UPDATESister Grove Regional Water Resource Recovery Facility

WASTEWATER PARTNERING MEETING

75

Shela Chowdhury

UEFIS and South Mesquite Regional Capacity Assessment and Assurance

Regional Service Through Unity… Meeting our Region’s Needs Today and Tomorrow

NTMWD Upper East Fork Interceptor System Regional Capacity Assessment and Assurance

REGIONAL CAPACITY ASSESSMENT PHASING

Phase 1: Develop and Update Model –• Phase 1A to fully define the NTMWD and Community system

extents and perform initial data collection/data gap assessments -Complete

• Phase 1B to complete data collection, model construction, perform flow monitoring and calibration - Ongoing

Phase 2: Capacity Assessment

Phase 3: Capacity Assurance

GENERAL STATUS UPDATE – PHASE 1B

78

Ongoing Work• Survey

– 95% Complete– Remaining work: 8 flow meters, and 4 lift stations

• Flow & Rainfall Monitoring– End of Flow Monitoring July 25, 2018– Meter Removal Complete August 30, 2018– Assessing and Scrubbing Flow Data

• Looking Ahead– Workshop this Afternoon on Project Update and needs in Individual Mtgs.– Scheduling Mtgs. w/ Community for Subcatchment / Land Use Review / Flows– Site Inspection Report Internally Reviewed To Communities October 2018– Deliver Draft Flow Monitoring Report to NTMWD September 2018– Deliver Draft Flow Monitoring Report to Communities Nov/Dec 2018

PROJECT APPROACH AND GENERAL SCOPE ELEMENTS – PHASE 2 CAPACITY ASSESSMENT

Perform Existing System

Capacity Assessment

Conduct follow-up meetings

for Projections/ future land use/future

improvements

Develop projections in accordance

with model protocol

Populate model with future flows/ conditions,

assess system

Provide future

system capacity

assessment and report to CommunitiesFeb – Apr 2019

May 2019

July 2019

Oct/Nov 2019

July 2019

Regional Service Through Unity… Meeting our Region’s Needs Today and Tomorrow

Buffalo Creek, Forney, Lower East Fork, and Mustang Creek Interceptor Systems Capacity Assessment

81

GENERAL STATUS UPDATE

Buffalo Creek, Forney, Lower East Fork, and Mustang Creek Interceptor Systems Capacity Assessment • Phase 1 (Completed on FY17)

– Built un-calibrated hydraulic model– Inspected 100 manholes physically– Generated Flow Monitoring Plan

• Phase 2 (Nearing Completion by FY18)– Presented Flow monitoring results to Communities July 19, 2018 Workshop– Internally reviewed Rainfall intensities and distribution– Internally reviewed Design storm; Recommend no change to SOP– Calibrated model & confirming Buffalo Creek Parallel Interceptor sizing– Draft memo to NTMWD September 21, 2018– Final memo to Communities October 2018

• Phase 3 (FY19)– Final Wastewater Model TM– Final Capital Improvement Plan TM

WASTEWATER PARTNERING MEETING

82

Ken WessonFrisco Plants Update

FRISCO PLANTS UPDATE

83

Frisco Service Provided By• Cottonwood Creek WWTP

• Decommissioned Saturday• 20th small WWTP decommissioned

to support regionalization in North Texas

• Stewart Creek WWTP

• Panther Creek WWTP

• UEFIS/RWWS

UPCOMING PARTNERING MEETINGS

2018 Meeting Dates

2019 Meeting Dates

WED 14 NOVEMBER RSVP LINK: https://www.surveymonkey.com/r/Partnering11142018

Meeting Time:9:30 a.m. - 11:30 am

Water Partnering MeetingWastewater Partnering Meeting

LOCATION – NTMWD ENGINEERING TNG RMUNLESS NOTIFIED OTHERWISE

RSVP through

WED 16 JANUARY RSVP LINK: https://www.surveymonkey.com/r/Partnering01162019WED 20 MARCH RSVP LINK: https://www.surveymonkey.com/r/Partnering03202019WED 15 MAY RSVP LINK: https://www.surveymonkey.com/r/Partnering05152019WED 17 JULY RSVP LINK: https://www.surveymonkey.com/r/Partnering07172019WED 18 SEPTEMBER RSVP LINK: https://www.surveymonkey.com/r/Partnering09182019WED 13 NOVEMBER RSVP LINK: https://www.surveymonkey.com/r/Partnering11132019