Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 60.8% full on 2026-06-15

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-06-15 60.8 249,195 249,124 409,821
Yesterday 2026-06-14 60.6 248,369 248,298 409,821
2 days ago 2026-06-13 60.6 248,521 248,450 409,821
1 week ago 2026-06-08 60.8 249,345 249,274 409,821
1 month ago 2026-05-15 60.0 245,946 245,875 409,821
3 months ago 2026-03-15 61.0 250,251 250,180 409,821
6 months ago 2025-12-15 63.5 260,254 260,183 409,821
1 year ago 2025-06-15 50.8 209,604 208,055 409,821
*

 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 59.0 886.77 -22.23 223,539 223,468 378,781 5,824
Coleto Creek Water Supply 82.7 95.74 -2.26 25,656 25,656 31,040 2,333