Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 70.2% full on 2025-07-20

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-07-20 70.2 287,768 287,549 409,821
Yesterday 2025-07-19 70.0 287,190 286,912 409,821
2 days ago 2025-07-18 69.7 286,199 285,832 409,821
1 week ago 2025-07-13 67.1 275,818 274,949 409,821
1 month ago 2025-06-20 50.9 209,680 208,456 409,821
3 months ago 2025-04-20 49.6 203,402 203,331 409,821
6 months ago 2025-01-20 52.6 215,458 215,387 409,821
1 year ago 2024-07-20 57.9 237,160 237,089 409,821
*

 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 67.7 892.19 -16.81 256,580 256,509 378,781 6,370
Coleto Creek Water Supply 100.0 98.05 0.05 31,188 31,040 31,040 2,659