San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 30.2% full on 2026-10-01

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-10-01 30.2 264,944 260,701 862,151
Yesterday 2026-09-30 30.2 264,978 260,735 862,151
2 days ago 2026-09-29 30.3 265,338 261,095 862,151
1 week ago 2026-09-24 30.5 267,368 263,125 862,151
1 month ago 2026-09-01 31.8 278,677 274,434 862,151
3 months ago 2026-07-01 35.1 306,682 302,439 862,151
6 months ago 2026-04-01 34.1 297,824 293,581 862,151
1 year ago 2025-10-01 37.9 331,189 326,946 862,151
*

 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 2026-09-30 Water Supply 85.6 1,871.73 -0.98 8,726 8,233 9,615 1,234
O C Fisher Water Supply and Flood Control 10.8 1,872.25 -35.75 12,510 12,509 115,742 1,096
O H Ivieas of 2026-09-30 Water Supply 41.6 1,529.44 -22.06 230,881 230,881 554,340 - n.a. -
Twin Buttesas of 2026-09-30 Water Supply and Flood Control 5.0 1,895.44 -44.76 12,827 9,078 182,454 1,077