San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 34.8% full on 2026-04-13

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2026-04-13 34.8 304,387 300,144 862,151
1 day prior 2026-04-12 34.2 299,432 295,189 862,151
2 days prior 2026-04-11 33.9 296,814 292,571 862,151
1 week prior 2026-04-06 34.1 298,086 293,843 862,151
1 month prior 2026-03-13 34.6 302,890 298,647 862,151
3 months prior 2026-01-13 35.6 310,986 306,743 862,151
6 months prior 2025-10-13 37.3 325,727 321,484 862,151
1 year prior 2025-04-13 28.5 249,698 245,455 862,151
*

 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 2026-04-20 Water Supply 87.3 1,871.86 -0.85 8,886 8,393 9,615 1,244
O C Fisheras of 2026-04-20 Water Supply and Flood Control 14.3 1,875.53 -32.47 16,529 16,528 115,742 1,330
O H Ivieas of 2026-04-20 Water Supply 47.1 1,532.19 -19.31 260,980 260,980 554,340 - n.a. -
Twin Buttesas of 2026-04-20 Water Supply and Flood Control 10.4 1,902.99 -37.21 22,678 18,929 182,454 1,570