San-Antonio River Basin Reservoirs: Monitored Water Supply Reservoirs are 29.5% full on 2026-07-31

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-07-31 29.5 75,080 75,080 254,823
Yesterday 2026-07-30 29.4 74,904 74,904 254,823
2 days ago 2026-07-29 29.3 74,654 74,654 254,823
1 week ago 2026-07-24 28.5 72,655 72,655 254,823
1 month ago 2026-06-30 9.0 23,003 23,003 254,823
3 months ago 2026-04-30 3.9 9,819 9,819 254,823
6 months ago 2026-01-31 4.4 11,299 11,299 254,823
1 year ago 2025-07-31 6.5 16,459 16,459 254,823
*

 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)
Medina Water Supply 29.5 1,021.47 -42.73 75,080 75,080 254,823 2,508