San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 36.0% full on 2025-11-21

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-11-21 36.0 314,600 310,357 862,151
Yesterday 2025-11-20 36.0 314,566 310,323 862,151
2 days ago 2025-11-19 35.8 313,193 308,950 862,151
1 week ago 2025-11-14 35.9 314,110 309,867 862,151
1 month ago 2025-10-21 36.9 322,031 317,788 862,151
3 months ago 2025-08-21 40.0 349,414 345,171 862,151
6 months ago 2025-05-21 31.2 272,896 268,653 862,151
1 year ago 2024-11-21 30.5 267,281 263,038 862,151
*

 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 2025-11-20 Water Supply 86.8 1,871.82 -0.89 8,836 8,343 9,615 1,241
O C Fisher Water Supply and Flood Control 15.2 1,876.32 -31.68 17,604 17,603 115,742 1,386
O H Ivieas of 2025-11-20 Water Supply 47.3 1,532.30 -19.20 262,249 262,249 554,340 - n.a. -
Twin Buttes Water Supply 12.1 1,904.97 -35.23 25,911 22,162 182,454 1,713