NORTH MUNICIPAL WATER DISTRICT

EAST FORK RAW WATER SUPPLY PROJECT

Denise Hickey, NTMWD Public Relations and Water Conservation Manager Topics

• NTMWD Background • East Fork Raw Water Supply Project “Wetland” • Main Stem Pump Station • John Bunker Sands Wetland Center NTMWD BACKGROUND History of NTMWD

From our founding 10 Member Cities:

“We decided we were all in this together. We couldn’t do it separately.”

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• 1951 - Created by Texas Legislature to Provide Water Service • 1956 - Began Providing Treated Water • 1970s - Expanded to Wastewater Service • 1980s - Expanded to Solid Waste Service Excerpts from Gift of Water, Legacy of Service

Population Growth “…an outburst of suburban growth that would rank the area, over much of the next quarter-century, among the fastest-growing in the nation.”

City 1950 1960 1970 1980 1990 2000 2010 2014

Garland 10,291 38,501 81,437 138,857 180,635 215,768 226,876 231,700

Mesquite 1,684 27,526 55,131 67,053 101,484 124,523 139,824 142,210

Plano 2,115 3,695 17,872 72,331 127,885 222,030 259,841 269,330

NTMWD Historical / Projected Population

Year 1956 1961 1974 1994 2014 2040 2070

Area 32,000 60,000 200,000 800,000 1,600,000 2,500,000 3,700,000 Population Basic Services Led to Self-Actualization

• “Fastest growing cities in the U.S.” – Frisco, McKinney • “Best Texas cities to raise a family” – Allen, Frisco, McKinney, Richardson, Rockwall, Wylie • “McKinney #1 Best Place to Live in America” – Money Magazine, 2014 • “Best suburbs for education in America” • “Best cities for first-time home buyers” – Allen, Frisco, Plano, McKinney, Richardson, Garland

Region C

• Region C represents the Metroplex and surrounding area • All or part of 16 counties • About ¼ of Texas’ population • 90% of water use for municipal • 90% is surface water New Supplies – 2012 Water Plan

Other New Major 6% Reservoir Conservation 17% 24%

Connection/Reallocati Reuse on of Existing 10% Supplies Groundwater 34% 9% 2012 State Water Plan for NTMWD Projected Water Needs

Lavon Lake Yield: Next 5 Decades: 104,000 ac-ft/yr Equivalent of Additional Lavon (93 MGD) Lake Yield for Every Decade + +

+ +

Total Yield: 206,000 ac-ft/yr (184 MGD) NTMWD Raw Water Supply Sources EAST FORK RAW WATER SUPPLY PROJECT “WETLAND” East Fork Raw Water Supply Project

• Authorization of Project by Board – Aug. 2003

• 81,000 -102,000 ac-ft/yr

• Project Cost - $246 million

• Project Completed – 2009 Project Benefits

• Efficient use of resources • No TPDES permit required • Provides wildlife habitat • Agency support – Texas Parks and Wildlife – Corps of Engineers • Public acceptance Inflow Chapman Lake Inflow Lavon Lake

Major Existing/Proposed WWTP Diversion Point Future Transfer Pathway

Lake Ray Hubbard East Fork Raw Water Supply Project Schematic Constructed Wetland East Fork Raw Water Supply Project

• 1,840 acre constructed wetland (largest in country)

• Provides polishing treatment of diverted East Fork of the Trinity River (70% of effluent discharged from NTMWD WWTPs)

• Improves water quality – Removes • Nitrogen • Phosphorus • Sediment Project Site Characteristics Wetland easement NORTH (2000 acres) 1.4 miles US 175

East Fork of Trinity

3.7 miles Direction of flow

FM 3039 Five Major Components

• Diversion Pump Station & Diversion Structure

• Constructed Wetland

• Conveyance Pump Station

• Electrical Substation

• Conveyance Pipeline & Outfall Structure Diversion Pump Station & Diversion Structure Constructed Wetland Constructed Wetland

• Sedimentation basins • 3 basins • average detention time 24 hours • Remove suspended solids

• Wetland cells • 24 cells • average detention time 7 to 10 days • Remove numerous constituents

• Shallow water depth: 12 inches– 18 inches

• Deepwater zone depth: 5 feet to 10 feet Constructed Wetland

Sedimentation Basins Conveyance Holding (3) Pump Pond Station

South North wetland wetlan cells (10) d cells (3) Central wetland cells (11) Constructed Wetland Plants

• Planted with more that 20 selected emergent wetland species • Plant diversity achieves water treatment required • Plant diversity also beneficial to wildlife • Plant stock grown & propagated in on-site nursery Constructed Wetland Nurseries

Phase 1 Nursery 18 acres 16,000 plant plugs 8 species Phase 2 Nursery 190 acres 225,000 plant plugs 12 species

Full Scale Wetland (Begin planting 1,560 acres marsh area Jan 2007) 1,800,000 plant plugs 16 species Water Quality Conveyance Pump Station Conveyance Pump Station

• 150 mgd peak capacity

• 110 mgd interim capacity

• Vertical Turbine Pumps 3 – 3000 Hp 2 – future 6000 Hp

• Equipped with SCADA system Electrical Substation Conveyance Pipeline Conveyance Pipeline

• Transfers polished water to outfall structure at Lavon Lake • Pipeline divided into 3 segments • Northern • Central • Southern • 84” diameter pipeline • 43.5 miles in length • Cement-mortar lined steel with polyurethane coating Outfall Structure Easements Acquired for the East Fork Project

Easements Southern Central Northern Segment - Segment Segment - Acquired for Kaufman - Collin the East Fork County Rockwall County Project County Total Acquired by 58 83 48 NTMWD Total easements = 189 A Perspective…

Lake Lavon Yield: East Fork Water 104,000 ac-ft/yr Supply Project: (93 MGD) + 102,000 ac-ft/yr (91 MGD)

+

Total Yield: 206,000 ac-ft/yr (184 MGD) TRINITY RIVER MAIN STEM PUMP STATION Main Stem Pump Station

–Supply Sources • Dallas Swap for Discharge (20 - 30 MGD) • Dallas Swap for Lake Lewisville Discharge (6 - 7 MGD) • Purchase from (50 MGD) –Contracts • Amend 2008 Contract with Dallas • Raw Water Purchase Contract with Trinity River Authority Main Stem Pump Station

– Scope of Work • 90 MGD Intake and Pump Station • 17 Miles of 66-Inch Pipeline • East Fork Conveyance Pump Station Expansion – Total Estimated Construction Cost – $99M

– Schedule

• Design/Bid/Build Delivery – Operational October 2017 • CMAR Delivery – Operational December 2016

The Wetland Center was named in honor of

John Bunker Sands 1948 – 2003

Conservation Advocate Wetland Steward Avid Outdoorsman Holistic Ranch Manager

: http://john-bunker-sands.click2stream.com/ www.water4otter.org www.ntmwd.com and follow us on:

https://www.facebook.com/pages/North-Texas-Municipal- Water-District/220424934701711 https://twitter.com/ntmwd