San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 38.6% full on 2025-09-17

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2025-09-17 38.6 336,866 332,623 862,151
1 day prior 2025-09-16 38.6 337,326 333,083 862,151
2 days prior 2025-09-15 38.7 337,671 333,428 862,151
1 week prior 2025-09-10 39.0 340,412 336,169 862,151
1 month prior 2025-08-17 40.2 351,176 346,933 862,151
3 months prior 2025-06-17 31.1 272,470 268,227 862,151
6 months prior 2025-03-17 28.9 253,793 249,550 862,151
1 year prior 2024-09-17 26.6 233,789 229,546 862,151
*

 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)
Nasworthyas of 2025-09-17 Water Supply 85.2 1,871.70 -1.01 8,689 8,196 9,615 1,232
O C Fisheras of 2025-09-17 Water Supply and Flood Control 16.5 1,877.35 -30.65 19,094 19,093 115,742 1,505
O H Ivieas of 2025-09-17 Water Supply 50.4 1,533.78 -17.72 279,617 279,617 554,340 - n.a. -
Twin Buttesas of 2025-09-17 Water Supply 14.1 1,906.93 -33.27 29,466 25,717 182,454 1,929