San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 34.2% full on 2026-07-16

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-07-16 34.2 299,066 294,823 862,151
Yesterday 2026-07-15 34.2 299,054 294,811 862,151
2 days ago 2026-07-14 34.2 299,009 294,766 862,151
1 week ago 2026-07-09 34.5 301,441 297,198 862,151
1 month ago 2026-06-16 35.8 312,946 308,703 862,151
3 months ago 2026-04-16 35.3 308,383 304,140 862,151
6 months ago 2026-01-16 35.5 310,389 306,146 862,151
1 year ago 2025-07-16 42.1 366,802 362,559 862,151
*

 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 2026-07-15 Water Supply 86.3 1,871.78 -0.93 8,787 8,294 9,615 1,238
O C Fisher Water Supply and Flood Control 12.8 1,874.23 -33.77 14,849 14,848 115,742 1,246
O H Ivieas of 2026-07-15 Water Supply 46.4 1,531.84 -19.66 256,999 256,999 554,340 - n.a. -
Twin Buttes Water Supply and Flood Control 8.0 1,900.07 -40.13 18,431 14,682 182,454 1,360