Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 68.9% full on 2025-09-16

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-09-16 68.9 282,475 282,404 409,821
Yesterday 2025-09-15 69.0 282,651 282,580 409,821
2 days ago 2025-09-14 69.0 282,914 282,843 409,821
1 week ago 2025-09-09 69.3 284,233 284,162 409,821
1 month ago 2025-08-16 70.3 288,009 287,938 409,821
3 months ago 2025-06-16 50.9 209,692 208,557 409,821
6 months ago 2025-03-16 50.7 207,897 207,826 409,821
1 year ago 2024-09-16 58.1 238,319 238,248 409,821
*

 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)
Canyon Water Supply and Flood Control 67.3 891.93 -17.07 254,927 254,856 378,781 6,344
Coleto Creek Water Supply 88.8 96.53 -1.47 27,548 27,548 31,040 2,446