Guadalupe River Basin Reservoirs: Monitored Water Supply Reservoirs are 94.8% full on 2026-10-28

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2026-10-28 94.8 388,523 388,452 409,821
1 day prior 2026-10-27 94.8 388,721 388,650 409,821
2 days prior 2026-10-26 94.9 388,838 388,767 409,821
1 week prior 2026-10-21 95.2 390,311 390,240 409,821
1 month prior 2026-09-28 95.9 392,963 392,892 409,821
3 months prior 2026-07-28 98.7 412,437 404,322 409,821
6 months prior 2026-04-28 60.1 246,230 246,159 409,821
1 year prior 2025-10-28 66.0 270,434 270,363 409,821
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

recent reservoir storage 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)
Canyonas of 2026-10-28 Water Supply and Flood Control 96.4 907.33 -1.67 365,258 365,187 378,781 8,045
Coleto Creek Water Supply 75.0 94.68 -3.32 23,265 23,265 31,040 2,183