Sulphur River Basin Reservoirs: Monitored Water Supply Reservoirs are 81.3% full on 2026-09-15

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-09-15 81.3 489,246 324,575 399,063
Yesterday 2026-09-14 81.5 490,504 325,226 399,063
2 days ago 2026-09-13 81.7 491,476 325,894 399,063
1 week ago 2026-09-08 82.4 498,271 329,016 399,063
1 month ago 2026-08-15 86.9 536,679 346,727 399,063
3 months ago 2026-06-15 91.9 576,799 366,751 399,063
6 months ago 2026-03-15 84.7 449,645 338,180 399,063
1 year ago 2025-09-15 91.6 524,668 365,443 399,063
*

 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)
Jim Chapman Water Supply and Flood Control 72.0 435.68 -4.32 222,137 186,362 258,723 15,438
Sulphur Springs Water Supply 88.0 457.76 -1.19 15,620 15,620 17,747 - n.a. -
Wright Patman Water Supply and Flood Control 100.0 225.67 5.07 251,489 122,593 122,593 - n.a. -