Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 63.5% full on 2025-12-15

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-12-15 63.5 260,294 260,223 409,821
Yesterday 2025-12-14 63.5 260,501 260,430 409,821
2 days ago 2025-12-13 63.6 260,621 260,550 409,821
1 week ago 2025-12-08 63.8 261,502 261,431 409,821
1 month ago 2025-11-15 64.8 265,662 265,591 409,821
3 months ago 2025-09-15 69.0 282,651 282,580 409,821
6 months ago 2025-06-15 50.8 209,604 208,055 409,821
1 year ago 2024-12-15 52.8 216,511 216,440 409,821
*

 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 62.4 888.96 -20.04 236,533 236,462 378,781 6,043
Coleto Creek Water Supply 76.5 94.91 -3.09 23,761 23,761 31,040 2,217