Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 63.5% full on 2025-12-19

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-12-19 63.5 260,186 260,115 409,821
Yesterday 2025-12-18 63.5 260,269 260,198 409,821
2 days ago 2025-12-17 63.5 260,203 260,132 409,821
1 week ago 2025-12-12 63.6 260,764 260,693 409,821
1 month ago 2025-11-19 64.6 265,005 264,934 409,821
3 months ago 2025-09-19 68.7 281,445 281,374 409,821
6 months ago 2025-06-19 50.9 209,612 208,506 409,821
1 year ago 2024-12-19 52.7 215,960 215,889 409,821
*

 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 62.3 888.91 -20.09 236,231 236,160 378,781 6,038
Coleto Creek Water Supply 77.2 95.00 -3.00 23,955 23,955 31,040 2,230