Sulphur River Basin Reservoirs: Monitored Water Supply Reservoirs are 80.3% full on 2026-09-21

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-09-21 80.3 480,776 320,647 399,063
Yesterday 2026-09-20 80.4 481,413 320,680 399,063
2 days ago 2026-09-19 80.5 482,678 321,342 399,063
1 week ago 2026-09-14 81.5 490,504 325,226 399,063
1 month ago 2026-08-21 85.7 525,673 342,082 399,063
3 months ago 2026-06-21 92.7 607,475 369,979 399,063
6 months ago 2026-03-21 84.1 445,778 335,648 399,063
1 year ago 2025-09-21 90.7 514,160 362,094 399,063
*

 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 70.4 435.40 -4.60 217,842 182,067 258,723 15,239
Sulphur Springs Water Supply 85.8 457.52 -1.43 15,225 15,225 17,747 - n.a. -
Wright Patman Water Supply and Flood Control 100.0 225.52 4.92 246,947 122,593 122,593 - n.a. -