Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 65.6% full on 2025-10-31

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-10-31 65.6 269,079 269,008 409,821
Yesterday 2025-10-30 65.7 269,379 269,308 409,821
2 days ago 2025-10-29 65.9 269,948 269,877 409,821
1 week ago 2025-10-24 66.1 270,852 270,781 409,821
1 month ago 2025-09-30 67.9 278,412 278,341 409,821
3 months ago 2025-07-31 70.7 289,665 289,594 409,821
6 months ago 2025-04-30 49.4 202,423 202,352 409,821
1 year ago 2024-10-31 54.7 224,059 223,988 409,821
*

 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 64.5 890.22 -18.78 244,227 244,156 378,781 6,170
Coleto Creek Water Supply 80.1 95.39 -2.61 24,852 24,852 31,040 2,284