San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 35.9% full on 2026-01-02

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-01-02 35.9 313,545 309,302 862,151
Yesterday 2026-01-01 35.9 313,575 309,332 862,151
2 days ago 2025-12-31 35.9 313,707 309,464 862,151
1 week ago 2025-12-26 36.0 314,880 310,637 862,151
1 month ago 2025-12-02 36.5 319,348 315,105 862,151
3 months ago 2025-10-02 37.9 330,728 326,485 862,151
6 months ago 2025-07-02 30.2 264,975 260,732 862,151
1 year ago 2025-01-02 29.7 260,556 256,313 862,151
*

 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 2026-01-01 Water Supply 86.6 1,871.81 -0.90 8,824 8,331 9,615 1,240
O C Fisher Water Supply and Flood Control 15.0 1,876.18 -31.82 17,407 17,406 115,742 1,369
O H Ivieas of 2026-01-01 Water Supply 47.2 1,532.26 -19.24 261,788 261,788 554,340 - n.a. -
Twin Buttes Water Supply and Flood Control 11.9 1,904.74 -35.46 25,526 21,777 182,454 1,696