San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 29.5% full on 2026-10-28

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2026-10-28 29.5 258,306 254,063 862,151
1 day prior 2026-10-27 29.5 258,561 254,318 862,151
2 days prior 2026-10-26 29.5 258,800 254,557 862,151
1 week prior 2026-10-21 29.7 260,358 256,115 862,151
1 month prior 2026-09-28 30.3 265,868 261,625 862,151
3 months prior 2026-07-28 34.1 298,335 294,092 862,151
6 months prior 2026-04-28 35.3 308,699 304,456 862,151
1 year prior 2025-10-28 36.7 320,484 316,241 862,151
*

 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 2026-10-28 Water Supply 86.0 1,871.76 -0.95 8,762 8,269 9,615 1,236
O C Fisher Water Supply and Flood Control 10.4 1,871.81 -36.19 12,032 12,031 115,742 1,056
O H Ivieas of 2026-10-28 Water Supply 40.8 1,528.98 -22.52 226,055 226,055 554,340 - n.a. -
Twin Buttes Water Supply and Flood Control 4.2 1,894.11 -46.09 11,438 7,689 182,454 1,016