Water Partnering Meeting 9:30 am October 19, 2016 · Water Partnering Meeting 9:30 am October 19,...

$Page 1: Water Partnering Meeting 9:30 am October 19, 2016 · Water Partnering Meeting 9:30 am October 19, 2016. ... and 2011 Region C Water Plans \⠀Ⰰ ㈀Ⰰ ㌀尩 as a supply ... nitrification$
North Texas Municipal Water District“Regional Service Through Unity …

Meeting Our Region’s Needs Today and Tomorrow”

Water Partnering Meeting9:30 am

October 19, 2016

AgendaI. Water Supply Update - Billy GeorgeII. LBCR & Main Stem PS Permitting Update - Billy GeorgeIII. Public Education Programs Update - Denise HickeyIV. Public Relations Update - Janet RummelV. Wylie WTP Flow Pacing, BAF, & Construction - Joe BernoskyVI. Upcoming Meetings - Billy George


Reservoir Elevations – October 19, 2016

Reservoir

Conservation Pool

Elevation Current Elevation Up/Down % Full

Lavon30% 492.0’ 488.67’ -3.33’ 83.8

Chapman15% 440.0’ 437.31’ -2.69’ 82.6

Tawakoni8% 437.5’ 435.29’ -2.21’ 90.9

Texoma28% 617.0’ 617.78’ +0.78’ 100

Presenter

Presentation Notes

Values as of 10/19/16 at 7:45 am

Water Consumption


Lower Bois d’Arc Creek Reservoir

Location: Fannin County, TXArea: 16,526 acresSupply: up to 108 MGDAverage/ Max Depth: 22/70 ftLake Elevation: 534 ft mslOwner & operator: NTMWDCost Estimate: ~$1.2BPermitting Required:

• Water Rights – received June 2015• USACE Section 404 – under review

Anticipate federal permit in 2018with water delivery in 2022*

First major reservoir to be constructed in Texas in the last 30 years

*Final schedule dependent on permitting

• Reservoir expected to provide up to 108,000 af/yr for NTMWD service area including Fannin County

• State Water Right Permit obtained in 2015

• CWA Section 404 permit pending

• USACE is the lead permitting agency

• Major threats to issuance of 404 Permit include:– USACE Denial– EPA Veto– Litigation


Presenter

Presentation Notes

Lower Bois d’Arc Creek Reservoir. Lower Bois d’Arc Creek Reservoir is a proposed reservoir on Bois d’Arc Creek in the Red River Basin. It was included in the 2001, 2006, and 2011 Region C Water Plans (1, 2, 3) as a supply for NTMWD. NTMWD is in the process of obtaining a Texas water right, a Section 404 permit, and other necessary permits for the project. Lower Bois d’Arc Creek Reservoir will provide up to 120,200 acre- feet per year for NTMWD and Fannin County. Lower Bois d’Arc Creek Reservoir will be developed by 2020. The supply shown for the lake in 2020 is limited to 15 MGD due to the anticipation that the lake will still be filling at that time. It is assumed that full filling will occur before 2030. The cost estimate for Lower Bois d’Arc Creek Reservoir includes not only the dam and reservoir, but also transmission facilities to deliver raw water to the proposed Leonard water treatment plant and to deliver treated water to District customers. The cost estimate for the Leonard treatment plant itself is included under NTWMD’s strategy of “Treatment and Distribution Improvements.”

• Work on the Draft Environmental Impact Statement continues on several areas including:– Purpose and Need Statement– Evaluation of Alternatives– Consideration of Cumulative Impacts– Consideration of Downstream Impacts– Mitigation Evaluation & Proposed Mitigation

• Regular coordination meetings with USACE and EPA

• NTMWD’s consultants are preparing an updated mitigation plan for submission to EPA in November

• On track for early 2018 USACE permit decision without legislative action



District Actions to Minimize Delays:• Water Resources Development

Act Amendment #5 included in current House of Representatives version

• Requires USACE and EPA permit decision by September 30, 2017

• Continued close coordination with permitting agencies

WRDA Amendment #5 Introduced by Rep. Sam Johnson

Co-Sponsors:Rep. Pete SessionsRep. John Ratcliffe

Rep. Eddie Bernice Johnson

• Trinity River Main Stem Pump Station– Up to 100 MGD– 17 miles, 72-inch-diameter

pipeline– Add one pump at

Conveyance Pump Station– Cost approx. $99 million– Complete in late-2018

MSPS & Pipeline Permitting

MSPS & Pipeline Permitting • Regional General Permit 12 (USACE 404 & 408 Permits):

– Received February 2016• TCEQ Water Rights:

– City of Dallas withdrew protest of TRA’s diversion permit application on October 10, 2016

– TCEQ is processing permit• TCEQ Bed & Banks:

– Draft permit written– Requires water right amendment

• Mediation with Rosewood Corporation onOctober 17, 2016

• Board to consider authorizing funds to continue construction at October meeting

MSPS Project Advancement• Construction Manager as Risk (CMAR) Guaranteed

Maximum Price (GMP) authorization anticipated on October 27, 2016

• Anticipate delivery of water during 4th quarter 2018


All trainings will be held from 10:00 AM – 3:00 PM.

Register at http://nrt.tamu.edu/ami

http://nrt.tamu.edu/ami

http://www.tawwa.org/event/webinarpackage2016

Smart Water Leadership Summit• To learn from leaders in Facility Management and Infection

Prevention how to– Develop and implement

a comprehensive water management program

– Optimize the total cost of your water systems through improving safety and efficiency

– Achieve compliance with latest guidance and standards from the CDC, ASHRAE, NSF International, USGBC and WELL

http://www.smartwaterleadership.com/

Regional Landscape InitiativeRecommended Basic/Primary Elements for All Cities to Consider for Long-Term Adoption

• Year-round twice per week, if needed, watering schedules• Time of day watering schedules (seasonal or year-round)• Water waste provisions (ex. watering running down the street, operating sprinklers

during precipitation/freezing events, spraying impervious surfaces, etc.)• Operating/functioning rain/freeze sensors required on all commercial sprinkler

systems, etc. Encourage residents to install a rain/freeze sensor.‒ Required to be installed for all systems since 2009 per state rules (2002 in Dallas)

• Additional water saving measures added to existing new irrigation system requirements such as: master valve, drip irrigation in landscape beds, etc.

• Commitment to explore use of alternative to drinking water when available such as reuse/grey water/well/pond/rainwater/condensate/etc.

• Promotion of ET based weekly watering recommendations• Recommended plant list • Adopt an outreach program – demo gardens, workshops, information, etc.

WIQ/WMY Retreat – FY17 Planning



to 20,000

Next Steps

• Approval of FY17 Scope of Work

• Schedule meeting with Communications Committee to review Scope of Work and FY17 basic concepts and receive comments

• Begin planning FY17 WIQ/WMY deliverables

WaterMyYard.org10/18/2016 08/16/2016

Allen 245 236Farmersville 57 55Forney 86 83Garland 127 120McKinney 808 760Mesquite 295 292Plano 1,585 1,566Princeton 117 113Richardson 525 511Rockwall 212 201Royse City 46 39Wylie 327 326Wetland 2 1Tawakoni 2 1121 RDF 3 1

WMY Total 4,437 4,305

WaterMyYard Subscribers – 4,437Frisco WaterWise Subscribers – 17,049

NTMWD - WMY has 15 Weather Stations

12 Rain Gauge Systems

Customer SubscribersCash SUD - 3Melissa - 67Murphy – 86Sachse - 79Joining soon: Parker

Regional Water Conservation Symposium


• Website – Member/Customer Portal– Password = CityCenter– Feedback?– Suggestions for content?

• News Stream eNewsletter– First issue sent last week– Projects Pipeline next one to launch– Subscribe at bottom of NTMWD homepage

• Chromium 6 Response– Total chromium levels are within 0.53 – 0.92 ppb,

less than 1% of the limit set by EPA of 100.00 ppb– Blog post shared on website and via social media– Fact sheet available for distribution

Public Relations Update

Upcoming Events• Tours for Member/Customer officials

– Oct. 20 (Farmersville, McKinney, Princeton, Rockwall, Wylie)– 2017 dates: Mar. 9, Jun. 9, Aug. 11, Oct. 12

• Water Supply Contract Working Group– Next meeting Oct. 31 at NTMWD

• 60th Anniversary Open House– Nov. 4 at NTMWD from 9 a.m. to 4 p.m.– Tours and displays– Open to all Member Cities and Customers

• H2O4TEXAS Tour & Region C Town Hall– Nov. 10 – Morning tour of Wylie plant, Afternoon town hall meeting at Collin College

• Lavon Lake Watershed Partnership Meeting– Nov. 15 from 3 to 4:30 p.m. in McKinney

• Communications Committee– Next meeting Dec. 13 in McKinney (10 to 11:30 a.m.)



Meeting our Region’s Needs Today and Tomorrow”

Wylie Water Treatment Plant ComplexUpdate on Flow Pacing and Biologically Active Filtration

&Winter 2016/2017 Construction Activities

Flow Pacing • A method of controlling chemical feeds (such as chlorine,

ammonia, coagulant, etc.) based on the flow of water‒ Allows more precise dosing‒ Allows more rapid dose adjustments due to flow changes‒ Can be manually overridden if required

• Requires modifications to chemical feeders, pumps, chemical analyzers, application points, and integrated control software

• Chemical flow pacing was initiated with Project 276 (Texoma to Wylie Raw Water Pipeline)

• Continuation Project 390 ‒ WTP III & IV complete‒ WTP I complete November 2016‒ WTP II will be completed when it returns to service in January

Biologically Active Filtration • Biologically Active Filtration or BAF is modified conventional

filtration• Microbial growth attached to the filter media consumes

organic matter that would otherwise flow through the treatment plant and ultimately into the distribution system‒ Contributes to a more stable water quality‒ Reduces potential for microbial regrowth and

nitrification in the distribution system• Works well in conjunction with ozone as the primary

disinfectant• BAF removes contaminants by three main mechanisms:

‒ Biodegradation of assimilable organic carbon (AOC)‒ Adsorption‒ Filtration of suspended solids.

Biologically Active Filtration• BAF Conversion• Requires significant filter and plant structural modifications

‒ Deeper filter depth and removal of IMS caps‒ Dechlorinated backwash

• Multiple projects over many years‒ WTP I – Project No. 259 (completed fall 2014)‒ WTP IV – Project No. 251 (completed summer 2014)‒ WTP III – Project No. 277 (completed spring 2016)‒ WTP II – Project No. 302 (scheduled completion spring 2017)‒ WTP II – Project No. 434 (scheduled completion mid 2019)

• Due to the interconnected nature of the Wylie WTP complex – a feature that provides great operational flexibility and redundancy – BAF cannot be implemented until all WTPs have been retrofitted

Water Quality and the Distribution System• Storage tanks and distribution pipelines are not “static”…they

are large, dynamic chemical/biological reactors…and water age plays a role:‒ Disinfectant decay‒ Increased DBP formation‒ Bacterial re-growth‒ Nitrification in chloraminated systems‒ Pb/Cu leaching‒ Distribution system sedimentation‒ Biofilm formation

The Distribution System – A Very Long Reactor

Storage Tank Management• NTMWD and its Member/Customer Cities both operate

storage tanks….but…• Different operating purposes = different operating

management strategies• NTMWD

‒ Maintain pump suction pressure‒ Flow equalization

• Member/Customer Cities‒ System equalization‒ Satisfy peak demands‒ Emergency/fire flow storage

Distribution System Maintenance• Other measures can contribute to the health of a distribution

system‒ Free chlorine “burn”

• Typically performed in early spring to reduce nitrifying bacteria

• Customer notification required• General flushing needed• Unidirectional flushing recommended

• Corrosion control‒ Currently a high visibility issue due to Flint, MI situation‒ NTMWD maintains elevated pH via sodium hydroxide

addition to minimize corrosivity of finished water

What Does This Mean for BAF & Flow Pacing?• Flow Pacing will allow more exact chemical dosing, especially

during flow changes• BAF will produce a more stable water quality• But even following implementation, active distribution system

management will be required to maintain water quality:‒ Minimize water age by correct sizing of pipes, tanks, and

pumps‒ Optimal tank inflow/outflow design‒ Increase tank turnover‒ Closing valves to reroute flows‒ Eliminate dead-ends‒ Possible installation of tank mixing systems‒ Flushing will still be required

2016/2017 Construction Season Activities• Project No. 330 (new 10 MG clearwells) continues with

completion expected in March 2017.• Project No. 302 (filter conversion in WTP II) continues with

completion expected in late spring 2017• Project No. 363 (rehabilitate HSPS 1-1) completion expected

late 2017/early 2018

• WTP II will be out of service from mid-October through mid-January (Project Nos. 302 & 330)

• WTP I will be out of service from mid-November through October 2017 (Project No. 363)

• Numerous other projects will require shorter duration shutdowns of treatment plants and pumps stations

2016/2016 Construction Season Schedule


RSVP through

Upcoming Meetings

www.NTMWD.com Follow us on: WED NOV 16 NTMWD

DEC (no meeting)

Meeting Time:9:30 a.m.

Water Partnering MeetingWastewater Partnering Meeting

(immediately following last item in the Water Partnering Meeting)

11:30 a.m.Target Meeting End Time

atNORTH TEXAS MUNICIPAL WATER DISTRICT

ENGINEERING BUILDING TRAINING ROOM505 E. Brown Street, Wylie, TX 75098

Agenda• General Announcements - Jenna Covington

• Free WEAT Webinar: New SSO Rule - When and How to Use It• Oct 26, 2016 12:00-1:00• http://www.weat.org/ for more information

• Wastewater System Overview - Jenna Covington

• Project Updates – Ken Wesson

• Discussion

1

http://www.weat.org/


Meeting our Region’s Needs Today and Tomorrow”

Wastewater Partnering MeetingOctober 19, 2016

2

Agenda• General Announcements - Jenna Covington

• Free WEAT Webinar: New SSO Rule - When and How to Use It• Oct 26, 2016 12:00-1:00• http://www.weat.org/ for more information

• Wastewater System Overview - Jenna Covington

• Project Updates – Ken Wesson

• Discussion

3

http://www.weat.org/

4

Wastewater System OverviewJenna Covington

Wastewater System Overview• Listing of NTMWD wastewater systems/departments• Charge structure for members of Regional Wastewater

System and participants of Sewer System (conveyance and treatment)

• Proportional cost sharing• Flow allocation annual process• Historical flow variability and projected flows• Flow contribution percentage example

(FY16 budget, FY16 actual, FY 17 budget)

• Charge structure for customers of Regional Wastewater System

5

Regional Wastewater System

Department Avg. Capacity No. O&M Positions FY 17 Budget Communities Served

Wilson Creek WWTP 56 mgd 55 $17.9M Allen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Prosper, Richardson

Rowlett Creek WWTP 24 mgd 25 $7.1M

Floyd Branch WWTP 4.75 mgd 7 $1.7M Richardson

Mesquite WWTP 33 mgd 32 $9.6MForney, Heath, Mesquite, Rockwall, Seagoville

Debt Service $22.3M

6

Sewer System PlantsDepartment Avg. Capacity No. O&M

Positions FY17 BudgetCommunities

Served

Panther Creek WWTP 10 mgd 16.5 $9.0M

FriscoStewart Creek WWTP 5 mgd10.5

$7.8M

Cottonwood Creek WWTP 0.3 mgd $157k

Muddy Creek WWTP 10 mgd 17.5 $5.8M Wylie, Murphy

Sabine Creek WWTP 1.5 mgd

8.5

$2.1M Royce City, Fate

Buffalo Creek WWTP 2.25 mgd $1.6MRockwall

Squabble Creek WWTP 1.2 mgd $472k

Seis Lagos WWTP .25 mgd $193k Seis Lagos

Farmersville WWTP .225 mgd $334k Farmersville

Lavon WWTP .25 mgd $229k Lavon

7The following plants have active permits, but are not currently in service: Murphy WWTP, Wylie WWTP, Royce City WWTP

Conveyance SystemDepartment FY17 Budget Communities Served

Upper East Fork IS $29MAllen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Prosper, Richardson

Murphy Int $59k Murphy

Forney Int $338k Forney

Lower East Fork Int $1.7M Mesquite, Seagoville

Muddy Creek Int $335k Murphy, Wylie

Parker Creek Int $262k Fate, Royse City

Sabine Creek Int $192k Royse City

Buffalo Creek Int $1.9M Forney, Heath, Rockwall

McKinney Int $7k McKinney

Mustang Creek Int $609k Forney

Parker Creek Parallel Int $183k Fate8

All conveyance O&M positions assigned to UEFIS with cost reimbursement by other departments

NTMWD Provides Wastewater Services to..

NTMWD Regional WW Members

NTMWD Regional WW Customers

NTMWD Sewer System Participants

Allen Anna Farmersville

Forney Fairview Fate

Frisco Lucas Frisco

Heath Melissa Lavon

McKinney Parker Murphy

Mesquite Rockwall

Plano Royse City

Princeton Seis Lagos UD

Prosper Wylie

Richardson

Rockwall

Seagoville

Allen, $3,588,023 Frisco, $1,483,066

McKinney, $7,211,743Plano, $12,981,674

Princeton, $345,593

Prosper, $701,799 Richardson, $3,059,823

Annual Billing Budget

Allen12%

Frisco5%

McKinney25%

Plano44%

Princeton1%

Prosper2%

Richardson11%

Annual Flow

Member and Participants Charge Structure Shares Costs Proportionally to Flow Contribution

Total budget: $27,771,295

Upper East Fork Interceptor System FY 17 Budget

Total projected flow: 22.2 BG

Annual Flow Allocation ProcessExample: FY 16

Budget Monthly Monitoring

Amended Budget

Monthly Monitoring True-Up

• Budgeted flows established in March 2015 and monthly charges established based on estimated percent flow of system and dollars budgeted

• Began monthly monitoring in October 2015• Amended flow and dollars submitted in March 2016

and communicated to cities in June 2016• October 2016 True-Up process

• Use actual annual flow volumes to determine communities percent contribution

• Use actual costs incurred to determine annual final charges• True-up charges relative to original budgeted values

Annual Wastewater System Flow Totals

34

37

40

34

32 31

36

3133 33 33

39

43

0

5

10

15

20

25

30

35

40

45

50

FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17

Annu

al V

olum

e Tr

eate

d (B

G)

Budgeted Amended Actual

Flow Contribution Percentage is Critical to Flow ProjectionsExample: Upper East Fork Interceptor System

Community FY 16 Budget

FY 16 Amended

FY16Actual

FY 17 Budget

Allen 12.8% 12.2% 11.9% 12.2%Frisco 5.5% 5.1% 5.3% 5.0%McKinney 24.1% 24.6% 25.2% 24.6%Plano 43.7% 44.3% 43.6% 44.2%Princeton 1.1% 1.2% 1.2% 1.2%*Prosper 2.6% 2.2% 2.1% 2.4%Richardson 10.3% 10.4% 10.6% 10.4%

* Prosper flow is based on contract minimum

Charge Structure for Customers• Unit rate established for each FY and each system• $/1,000 gal = 1.2 x (System total FY budget/

Budgeted flows of member & customer cities)• Charged based on actual contribution• Charges assessed to customers deducted from total

expenditures prior to allocation of cost to members

15

Project UpdatesKen Wesson

Wastewater Operations Projects• Floyd Branch RWWTP Secondary Clarifier No. 1 Coating

and Rehab• Wilson Creek RWWTP

• BNR Basin 9 Improvements• Lighting Improvements

• South Mesquite RWWTP Lighting Improvements• Buffalo Creek WWTP

• Step Screen Installation• Treatment Unit No. 1 Cleaning and Inspection

• Farmersville WWTP Belt Filter Press Building• Conversion from Pressure to Vacuum System for Feed

of Chlorine and Sulfur Dioxide

Floyd Branch RWWTP Secondary Clarifier No. 1 Coating and Rehab

Wilson Creek RWWTP BNR Basin 9 Improvements

18

19

Wilson Creek RWWTP Lighting Improvements

South Mesquite RWWTP Lighting Improvements

20

Before

After

Buffalo Creek WWTP Step Screen Installation

Buffalo Creek WWTP Treatment Unit No.1 Cleaning and Inspection

Farmersville WWTP Belt Filter Press Building

Before After

Conversion from Pressure to Vacuum System for Feed of Chlorine and Sulfur Dioxide

Wastewater Treatment Plant # of Cylinders Conversion Date

Rowlett Creek RWWTP 12 1-ton 04/25/2016

South Mesquite Creek RWWTP 10 1-ton 05/02/2016

Stewart Creek WWTP 4 1-ton 05/06/2016

Wilson Creek RWWTP 18 1-ton 05/20/2016

Squabble Creek WWTP* 8 150-lbs 03/25/2016

Buffalo Creek WWTP* 8 150-lbs 03/25/2016

Farmersville WWTP* 4 150-lbs 3/30/2016

Bear Creek WWTP* 1 150-lbs 03/28/2016

Seis Lagos WWTP* 1 150-lbs 03/30/2016

* Not Subject to RMP

25

Discussion

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Water Partnering Meeting 9:30 am October 19, 2016 · Water Partnering Meeting 9:30 am October 19,...

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