2. Topics
Customer Profile
Water Demands
Water Supplies
Water Supply Status
New Water Supplies
Drought Management Policy
Critical Supply Projection
3. Customer Profile
Population: 93,200
Water Connections: 32,000
Water demand by customer category:
Residential 62%
Commercial 20%
System Operation 14%
Industrial 4%
Notable entities:
Goodfellow Air Force Base
Angelo State University
Shannon Medical Center
Community Medical Center
5. Water Supplies
All current water supplies are surface water
Reservoirs and Lakes
Highly impacted by drought
Primary Sources:
O.H. Ivie Reservoir
Twin Buttes Reservoir
Lake Nasworthy
O.C. Fisher Reservoir
Lake Spence
6. O.H. Ivie Reservoir
Owned and operated by the Colorado River Municipal
Water District
Purpose: Water Supply
Supplies: Odessa, Big Spring, Snyder, Midland, Abilene,
San Angelo, Ballinger and Millersview-Doole
Storage Capacity: 554,339 acre-feet
Current Storage: 98,400 acre-feet
2011 Change in Storage: -81,820 acre-feet
7. Twin Buttes Reservoir
U.S. Bureau of Reclamation
Managed under contract by the City of San Angelo
Purpose: Water Supply, Irrigation and Flood Control
Supplies: City of San Angelo and Tom Green County
Water Control Improvement District #1
Storage Capacity: 186,244 acre-feet
Current Storage: 13,100 acre-feet
2011 Change in Storage: -22,344 acre-feet
8. Lake Nasworthy
Owned and operated by the City of San Angelo
Purpose: Water Supply
Supplies: City of San Angelo
Storage Capacity: 12,500 acre-feet
Current Storage: 8,200 acre-feet
2011 Change in Storage: -120 acre-feet
9. O. C. Fisher
COE - Upper Colorado River Authority
Purpose: Water Supply and Flood Control
Supplies: City of San Angelo and UCRA
Storage Capacity: 119,000 acre-feet
Current Storage: 1,000 acre-feet
2011 Change in Storage: -771 acre-feet
10. Lake Spence
Colorado River Municipal Water District
Purpose: Water Supply
Supplies: Odessa, Big Spring, Snyder, Midland,
San Angelo
Storage Capacity: 488,000 acre-feet
Current Storage: 2,300 acre-feet
2011 Change in Storage: -13,190 acre-feet
14. New Water Supplies
Hickory Groundwater Supply
35,000 acres of groundwater rights acquired in 1972
62 miles southeast of San Angelo in McCullough County
near Brady, Texas
Arbitrated water allocations:
Development Phase Year Allocation
I 2013 6 mgd
II 2026 9 mgd
III 2036 10.7 mgd
15. New Water Supplies (Cont.)
Hickory Groundwater Supply (Continued)
Project Cost: $120,000,000
Wellfield and transmission piping under contract with
projected completion of June 2013.
Pump Station and Well Development bidding and projected
completion of June 2013
Treatment Plant for Radionuclides projected for completion
in early 2014.
16. Drought Management Policy
Multi-stage with trigger points based on supplies
Principles:
Public Education
Progressive restrictions on outside watering until
prohibited in final stage
Progressive surcharges for ‘excess’ use of water
Enforcement Provisions
17. Drought Management Policy
(Cont.)
Implementation Stages are based on available supply
from all sources:
Water Conservation: > 2 years supply
Drought Level 1: < 2 years supply
Drought Level 2: 18 months or less
Drought Level 3: 12 months or less