Plateau Planning Region Reservoirs: Monitored Water Supply Reservoirs are 35.4% full on 2025-09-06

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-09-06 35.4 779,593 641,350 1,813,408
Yesterday 2025-09-05 35.2 776,181 638,543 1,813,408
2 days ago 2025-09-04 35.1 773,126 636,030 1,813,408
1 week ago 2025-08-30 33.7 766,170 610,767 1,813,408
1 month ago 2025-08-06 34.0 768,892 617,002 1,813,408
3 months ago 2025-06-06 28.8 633,028 522,533 1,813,408
6 months ago 2025-03-06 26.1 670,122 474,079 1,813,408
1 year ago 2024-09-06 26.0 653,174 471,903 1,813,408
*

 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)
Amistad 1 Water Supply and Flood Control 35.4 1,056.76 -60.24 779,593 641,350 1,813,408 20,866
footnotes
1

Lake Amistad straddles the border of Texas and Mexico. By treaty, Texas has rights 56.2% of the total conservation capacity. The fraction of the actual storage that belongs to Texas is formally determined biweekly by the International Boundary Water Commission (IBWC). The IBWC is the legal repository of data related to this lake for treaty purposes and official versions of the datasets should be obtained directly from them. Conservation capacity is based on 56.2% of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas fraction.