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San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 36.5% full on 2025-11-25

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-11-25 36.5 319,163 314,920 862,151
Yesterday 2025-11-24 36.3 317,480 313,237 862,151
2 days ago 2025-11-23 36.0 314,899 310,656 862,151
1 week ago 2025-11-18 35.8 313,311 309,068 862,151
1 month ago 2025-10-25 36.8 321,188 316,945 862,151
3 months ago 2025-08-25 39.8 347,296 343,053 862,151
6 months ago 2025-05-25 31.1 272,144 267,901 862,151
1 year ago 2024-11-25 30.5 267,010 262,767 862,151
*

 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)
Nasworthy Water Supply 89.0 1,871.99 -0.72 9,049 8,556 9,615 1,253
O C Fisher Water Supply and Flood Control 15.5 1,876.57 -31.43 17,956 17,955 115,742 1,416
O H Ivie Water Supply 48.0 1,532.61 -18.89 265,826 265,826 554,340 - n.a. -
Twin Buttes Water Supply 12.4 1,905.21 -34.99 26,332 22,583 182,454 1,738