Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 62.5% full on 2026-07-11

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-07-11 62.5 256,319 256,248 409,821
Yesterday 2026-07-10 62.5 256,342 256,271 409,821
2 days ago 2026-07-09 62.6 256,685 256,614 409,821
1 week ago 2026-07-04 62.9 257,823 257,752 409,821
1 month ago 2026-06-11 60.7 248,916 248,845 409,821
3 months ago 2026-04-11 60.0 245,832 245,761 409,821
6 months ago 2026-01-11 62.6 256,444 256,373 409,821
1 year ago 2025-07-11 66.8 275,006 273,841 409,821
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area 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 2026-07-10 Water Supply and Flood Control 60.9 888.00 -21.00 230,778 230,707 378,781 5,947
Coleto Creek Water Supply 82.3 95.69 -2.31 25,541 25,541 31,040 2,326