San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 29.8% full on 2026-10-14

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-10-14 29.8 260,762 256,519 862,151
Yesterday 2026-10-13 29.8 260,909 256,666 862,151
2 days ago 2026-10-12 29.8 261,056 256,813 862,151
1 week ago 2026-10-07 30.0 263,255 259,012 862,151
1 month ago 2026-09-14 31.1 271,958 267,715 862,151
3 months ago 2026-07-14 34.3 299,568 295,325 862,151
6 months ago 2026-04-14 35.2 307,355 303,112 862,151
1 year ago 2025-10-14 37.2 325,251 321,008 862,151
*

 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 85.1 1,871.69 -1.02 8,676 8,183 9,615 1,232
O C Fisher Water Supply and Flood Control 10.6 1,872.04 -35.96 12,274 12,273 115,742 1,072
O H Ivie Water Supply 41.1 1,529.13 -22.37 227,624 227,624 554,340 - n.a. -
Twin Buttes Water Supply and Flood Control 4.6 1,894.84 -45.36 12,188 8,439 182,454 1,044