Sulphur River Basin Reservoirs: Monitored Water Supply Reservoirs are 81.7% full on 2026-09-13

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-09-13 81.7 491,937 326,049 399,063
Yesterday 2026-09-12 81.9 492,897 326,703 399,063
2 days ago 2026-09-11 81.9 494,141 327,030 399,063
1 week ago 2026-09-06 82.8 501,436 330,334 399,063
1 month ago 2026-08-13 87.3 540,987 348,467 399,063
3 months ago 2026-06-13 91.4 571,590 364,892 399,063
6 months ago 2026-03-13 84.8 448,308 338,445 399,063
1 year ago 2025-09-13 91.8 526,943 366,512 399,063
*

 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 72.6 435.77 -4.23 223,529 187,754 258,723 15,501
Sulphur Springs Water Supply 88.5 457.81 -1.14 15,702 15,702 17,747 - n.a. -
Wright Patman Water Supply and Flood Control 100.0 225.71 5.11 252,706 122,593 122,593 - n.a. -