San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 31.1% full on 2025-05-30

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-05-30 31.1 272,581 268,338 862,151
Yesterday 2025-05-29 31.1 272,085 267,842 862,151
2 days ago 2025-05-28 31.1 272,422 268,179 862,151
1 week ago 2025-05-23 31.3 273,742 269,499 862,151
1 month ago 2025-04-30 31.2 272,970 268,727 862,151
3 months ago 2025-02-28 29.3 257,079 252,836 862,151
6 months ago 2024-11-30 30.4 266,397 262,154 862,151
1 year ago 2024-05-30 22.5 198,602 194,359 862,151
*

 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 93.9 1,871.85 -0.35 9,518 9,025 9,615 1,281
O C Fisher Water Supply and Flood Control 9.5 1,870.74 -37.26 10,948 10,947 115,742 973
O H Ivie Water Supply 40.2 1,528.68 -22.82 223,004 223,004 554,340 - n.a. -
Twin Buttes Water Supply 13.9 1,906.74 -33.46 29,111 25,362 182,454 1,908