Water supply in houston - Understanding the past while looking to the future

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Information about Water supply in houston - Understanding the past while looking to the...

Published on March 10, 2014

Author: texasnetwork

Source: slideshare.net

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Presented by Mark L. Loethen, P.E.at the Texas Water Conservation Association Conference in The Woodlands, Texas - March 2014

UNDERSTANDING THE PAST WHILE LOOKING TO THE FUTURE Mark L. Loethen, P.E. Deputy Director, Public Works & Engineering March 6, 2014 Houston 2090 WATER SUPPY IN HOUSTON:

2 Today’s Presentation Water Supply in Houston  A Historical Perspective  Where we are today in 2014  What will the Future Hold  Questions

3 Water Supply in Houston The Basics Houston City Limits: 635+ square miles Houston Population Served: 2.1 million+ 4th Largest City in the United States Add in the region for Water Supply Overall Water Supply Area: ~1,550 square miles • Three Counties Water Customers Served: ~ 4.3 million

4 A Historical Perspective In the Beginning ◦ 1878 City Council Contracts with Houston Water Works Company ◦ Contract Requirements ◦ Provide 55 Fire Hydrants ◦ 150,000 Gallon Reservoir ◦ 3,000,000 gallons per day ◦ 4 miles of distribution mains ◦ Free Water to 3 City Fountains ◦ Rate Limit of 5 Cents/100 gallons Water Supply: Buffalo Bayou

5 Then Came Water from the Ground  1887 Artesian Well at 180 feet  15 Wells Drilled  Houston Water Works affirms Artesian supply (no longer Buffalo Bayou)  1906 – City of Houston buys Water Works Company ◦ Water Works Plant ◦ 55 Wells ◦ 65 Miles of Water Mains Houston promptly drills 66 new wells

6 Houston Still has Water from the Ground  Main Water Supply System ◦ 101 Water Wells ◦ Actual Production Capacity (173 MGD)  Isolated Water Supply Systems ◦ 28 Water Wells ◦ Actual Production Capacity (41 MGD)

7 Looking to the Future: Surface Water Enters the Picture Water from San Jacinto River  1945 – 2 Federally Funded Canals purchased by City  1954 – Lake Houston Dam Constructed by City  160,000 Acre-Feet of Storage Houston 2014

8 Additional Surface Water Water from Trinity River  1969 – Houston and Trinity River Authority Construct Lake Livingston  83,000 Surface Acres  Dam: 2.5 miles long  Storage: 1.7Million Acre-feet

9 Additional Surface Water More Water from San Jacinto River  1973 – Houston and San Jacinto River Authority Construct Lake Conroe  20,000 Surface Acres  Dam: 11,000 feet in length  Storage: >416,00 Acre-feet

10 Water Treatment East Water Purification Plant 350 MGD Water Supplies in Hand:

11 Water Treatment Southeast Water Purification Plant 200 MGD Northeast Water Purification Plant 80 MGD Houston Water

12 Treated Water DeliveryHouston Water 7 RePump Stations

13 Strategic Partnerships/CustomersHouston Water Contract Types Treated Water Contracts 49 GRP Water Contracts (Areas I, II and III) 98 Raw/Untreated Water Contracts 113 Strategic Partnership Contracts (Regional Water Authorities and SE Plant Co- Participants) 14 Reclaimed Water Contracts 2 TOTAL 276

14 Houston Water  Surface Water ◦ Lake Houston ◦ Lake Livingston ◦ Lake Conroe  Groundwater  Water Conservation  Reclaimed/Reuse Water Current Strategies - 2014

15 Houston Water Population Estimates Year City Limits COH Service Area TWDB 2011 HGSD 2012 TWDB 2011 HGSD 2012 2010 2,099,451 2,099,451 4,068,413 4,333,476 2020 2,361,723 2,248,414 4,642,349 4,924,100 2030 2,621,560 2,428,680 5,212,135 5,275,955 2040 2,879,184 2,606,077 5,776,087 5,571,310 2050 3,138,008 2,783,630 6,331,797 5,850,897 2060 3,397,563 2,965,639 6,883,684 6,125,922 Houston 2060

16 Houston Water Population Estimates

17 Houston Water Convert Population Estimates to Demands

18 Houston Water Current Forecast

19 Houston Water Future Water Supply Projects Luce Bayou Interbasin Transfer Project  3.6 Miles of Pipeline  23 Miles of Canals  Capacity: 425 MGD  404 Permit Issued/Pump Station in Design Houston 2020

20 Houston Water NEWPP Expansion 80 MGD Expanded to 400 MGD Houston 2025

21 Houston Water Allens Creek Reservoir • Storage Capacity: 145,000 acre- feet • Diversion Limit: 62 MGD (COH) Houston 2025

22 Direct and Indirect Water Reuse Further Water Conservation Desalination ? Houston Water Looking to Future Houston 2080 ?

23 Houston Water Looking to Future Importation of Groundwater ? Interbasin Transfer from East? Houston 2080 ?

24 Questions ? Ignore the Past? Understand and Learn from the Past

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