South-Central-Texas Planning Region Reservoirs: Monitored Water Supply Reservoirs are 38.2% full on 2026-04-20

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2026-04-20 38.2 253,971 253,900 664,644
1 day prior 2026-04-19 38.2 253,964 253,893 664,644
2 days prior 2026-04-18 38.2 253,962 253,891 664,644
1 week prior 2026-04-13 38.3 254,867 254,796 664,644
1 month prior 2026-03-20 39.0 259,231 259,160 664,644
3 months prior 2026-01-20 40.0 266,217 266,146 664,644
6 months prior 2025-10-20 43.0 286,131 286,060 664,644
1 year prior 2025-04-20 31.4 208,769 208,698 664,644
*

 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)
Canyonas of 2026-04-20 Water Supply and Flood Control 58.4 886.35 -22.65 221,102 221,031 378,781 5,782
Coleto Creekas of 2026-04-20 Water Supply 74.5 94.61 -3.39 23,114 23,114 31,040 2,173
Medinaas of 2026-04-20 Water Supply 3.8 976.66 -87.54 9,755 9,755 254,823 718