South-Central Climate Division Reservoirs: Monitored Water Supply Reservoirs are 84.1% full on 2026-09-21

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2026-09-21 84.1 1,646,161 1,628,449 1,936,953
1 day prior 2026-09-20 84.2 1,648,986 1,631,274 1,936,953
2 days prior 2026-09-19 84.4 1,652,313 1,634,601 1,936,953
1 week prior 2026-09-14 85.2 1,668,812 1,651,100 1,936,953
1 month prior 2026-08-21 88.8 1,742,483 1,720,389 1,936,953
3 months prior 2026-06-21 72.2 1,449,073 1,398,034 1,936,953
6 months prior 2026-03-21 63.2 1,242,193 1,224,481 1,936,953
1 year prior 2025-09-21 72.3 1,418,966 1,401,254 1,936,953
*

 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)
Austinas of 2026-09-21 Water Supply 97.2 492.37 -0.43 23,907 23,298 23,972 1,555
Canyonas of 2026-09-21 Water Supply and Flood Control 98.5 908.32 -0.68 373,278 373,207 378,781 8,158
Coleto Creek Water Supply 72.4 94.31 -3.69 22,467 22,467 31,040 2,129
Medina Water Supply 28.9 1,020.93 -43.27 73,735 73,735 254,823 2,471
Somerville Water Supply and Flood Control 91.2 236.80 -1.20 137,125 137,125 150,293 10,709
Travisas of 2026-09-21 Water Supply and Flood Control 90.9 675.59 -5.41 1,015,422 998,390 1,098,044 17,804