Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 64.7% full on 2025-11-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-11-18 64.7 265,180 265,109 409,821
Yesterday 2025-11-17 64.7 265,141 265,070 409,821
2 days ago 2025-11-16 64.8 265,471 265,400 409,821
1 week ago 2025-11-11 65.0 266,488 266,417 409,821
1 month ago 2025-10-18 66.6 272,967 272,896 409,821
3 months ago 2025-08-18 70.2 287,572 287,501 409,821
6 months ago 2025-05-18 48.4 198,547 198,476 409,821
1 year ago 2024-11-18 54.1 221,608 221,537 409,821
*

 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 63.5 889.63 -19.37 240,604 240,533 378,781 6,110
Coleto Creek Water Supply 79.2 95.27 -2.73 24,576 24,576 31,040 2,268