San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 41.3% full on 2025-08-02

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-08-02 41.3 360,222 355,979 862,151
Yesterday 2025-08-01 41.3 360,529 356,286 862,151
2 days ago 2025-07-31 41.4 361,001 356,758 862,151
1 week ago 2025-07-26 41.7 363,934 359,691 862,151
1 month ago 2025-07-02 30.2 264,975 260,732 862,151
3 months ago 2025-05-02 31.0 271,906 267,663 862,151
6 months ago 2025-02-02 29.5 258,658 254,415 862,151
1 year ago 2024-08-02 20.5 181,042 176,799 862,151
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

Reservoir Storage

Reservoir Type Percent Full Water Level
(ft)
Height Above Conservation Pool
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Nasworthy Water Supply 85.1 1,871.69 -1.02 8,676 8,183 9,615 1,232
O C Fisher Water Supply and Flood Control 18.1 1,878.55 -29.45 21,001 21,000 115,742 1,678
O H Ivie Water Supply 53.7 1,535.26 -16.24 297,818 297,818 554,340 - n.a. -
Twin Buttes Water Supply 15.9 1,908.55 -31.65 32,727 28,978 182,454 2,109