San Angelo Area Reservoirs: Monitored Water Supply Reservoirs are 34.7% full on 2026-03-03

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-03-03 34.7 303,050 298,807 862,151
Yesterday 2026-03-02 34.7 303,175 298,932 862,151
2 days ago 2026-03-01 34.7 303,307 299,064 862,151
1 week ago 2026-02-24 34.8 304,406 300,163 862,151
1 month ago 2026-02-03 35.2 307,635 303,392 862,151
3 months ago 2025-12-03 36.6 319,439 315,196 862,151
6 months ago 2025-09-03 39.4 344,131 339,888 862,151
1 year ago 2025-03-03 29.2 256,282 252,039 862,151
*

 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 86.5 1,871.80 -0.91 8,812 8,319 9,615 1,239
O C Fisher Water Supply and Flood Control 14.5 1,875.72 -32.28 16,782 16,781 115,742 1,337
O H Ivie Water Supply 45.6 1,531.46 -20.04 252,750 252,750 554,340 - n.a. -
Twin Buttes Water Supply and Flood Control 11.5 1,904.25 -35.95 24,706 20,957 182,454 1,661