San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 31.1% full on 2025-05-25

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-05-25 31.1 272,294 268,051 862,151
Yesterday 2025-05-24 31.1 272,714 268,471 862,151
2 days ago 2025-05-23 31.2 273,132 268,889 862,151
1 week ago 2025-05-18 31.3 274,218 269,975 862,151
1 month ago 2025-04-25 31.0 271,088 266,845 862,151
3 months ago 2025-02-25 29.4 257,442 253,199 862,151
6 months ago 2024-11-25 30.6 267,654 263,411 862,151
1 year ago 2024-05-25 22.7 199,833 195,590 862,151
*

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

Area Map

recent reservoir storage 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 92.5 1,871.75 -0.45 9,390 8,897 9,615 1,274
O C Fisher Water Supply and Flood Control 9.4 1,870.69 -37.31 10,901 10,900 115,742 967
O H Ivie Water Supply 40.2 1,528.68 -22.82 223,004 223,004 554,340 - n.a. -
Twin Buttes Water Supply 13.8 1,906.68 -33.52 28,999 25,250 182,454 1,902