UNDERSTANDING THE PAST
WHILE LOOKING TO THE FUTURE
Mark L. Loethen, P.E.
Deputy Director, Public Works &
Engineering
March...
2
Today’s Presentation
Water Supply in Houston
 A Historical Perspective
 Where we are today in 2014
 What will the Fut...
3
Water Supply in Houston
The Basics
Houston City Limits: 635+ square miles
Houston Population Served: 2.1 million+
4th La...
4
A Historical Perspective
In the Beginning
◦ 1878 City Council Contracts with Houston
Water Works Company
◦ Contract Requ...
5
Then Came Water from the Ground
 1887 Artesian Well at 180 feet
 15 Wells Drilled
 Houston Water Works affirms Artesi...
6
Houston Still has Water from the Ground
 Main Water Supply System
◦ 101 Water Wells
◦ Actual Production Capacity (173 M...
7
Looking to the Future:
Surface Water Enters the Picture
Water from San Jacinto River
 1945 – 2 Federally Funded
Canals ...
8
Additional Surface Water
Water from Trinity River
 1969 – Houston and Trinity River
Authority Construct Lake
Livingston...
9
Additional Surface Water
More Water from San Jacinto River
 1973 – Houston and San Jacinto
River Authority Construct La...
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, I...
14
Houston Water
 Surface Water
◦ Lake Houston
◦ Lake Livingston
◦ Lake Conroe
 Groundwater
 Water Conservation
 Recla...
15
Houston Water
Population Estimates
Year City Limits COH Service Area
TWDB
2011
HGSD
2012
TWDB
2011
HGSD
2012
2010 2,099...
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...
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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Water supply in houston - Understanding the past while looking to the future

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

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

  1. 1. 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. 2. 2 Today’s Presentation Water Supply in Houston  A Historical Perspective  Where we are today in 2014  What will the Future Hold  Questions
  3. 3. 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. 4. 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. 5. 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. 6. 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. 7. 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. 8. 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. 9. 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. 10. 10 Water Treatment East Water Purification Plant 350 MGD Water Supplies in Hand:
  11. 11. 11 Water Treatment Southeast Water Purification Plant 200 MGD Northeast Water Purification Plant 80 MGD Houston Water
  12. 12. 12 Treated Water DeliveryHouston Water 7 RePump Stations
  13. 13. 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. 14. 14 Houston Water  Surface Water ◦ Lake Houston ◦ Lake Livingston ◦ Lake Conroe  Groundwater  Water Conservation  Reclaimed/Reuse Water Current Strategies - 2014
  15. 15. 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. 16. 16 Houston Water Population Estimates
  17. 17. 17 Houston Water Convert Population Estimates to Demands
  18. 18. 18 Houston Water Current Forecast
  19. 19. 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. 20. 20 Houston Water NEWPP Expansion 80 MGD Expanded to 400 MGD Houston 2025
  21. 21. 21 Houston Water Allens Creek Reservoir • Storage Capacity: 145,000 acre- feet • Diversion Limit: 62 MGD (COH) Houston 2025
  22. 22. 22 Direct and Indirect Water Reuse Further Water Conservation Desalination ? Houston Water Looking to Future Houston 2080 ?
  23. 23. 23 Houston Water Looking to Future Importation of Groundwater ? Interbasin Transfer from East? Houston 2080 ?
  24. 24. 24 Questions ? Ignore the Past? Understand and Learn from the Past

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