Edwards-Plateau Climate Division Reservoirs: Monitored Water Supply Reservoirs are 36.9% full on 2025-06-15

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-06-15 36.9 1,710,706 1,557,302 4,217,160
Yesterday 2025-06-14 36.9 1,710,770 1,557,366 4,217,160
2 days ago 2025-06-13 36.8 1,703,506 1,550,454 4,217,160
1 week ago 2025-06-08 36.2 1,678,369 1,527,382 4,217,160
1 month ago 2025-05-15 34.8 1,620,112 1,469,275 4,217,160
3 months ago 2025-03-15 34.2 1,691,919 1,456,866 4,261,647
6 months ago 2024-12-15 35.8 1,753,683 1,525,409 4,261,647
1 year ago 2024-06-15 36.2 1,724,547 1,526,679 4,217,160
*

 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 29.5 1,049.97 -67.03 649,126 534,164 1,813,408 17,514
Brady Creekas of 2025-06-14 Water Supply 30.9 1,728.20 -14.80 10,525 8,903 28,808 873
Buchanan Water Supply 64.3 1,003.21 -14.79 542,608 528,946 822,207 17,111
E V Spence Water Supply 15.3 1,850.09 -47.91 78,896 78,896 517,272 4,461
Inks Water Supply 94.4 887.03 -0.97 13,242 12,959 13,729 777
Lyndon B Johnson Water Supply 98.1 824.66 -0.34 129,436 110,596 112,778 6,400
Marble Falls Water Supply 95.0 736.37 -0.63 7,215 7,215 7,597 601
Nasworthyas of 2025-06-14 Water Supply 85.9 1,871.75 -0.96 8,750 8,257 9,615 1,236
O C Fisher Water Supply and Flood Control 9.5 1,870.77 -37.23 10,976 10,975 115,742 977
O H Ivieas of 2025-06-14 Water Supply 40.4 1,528.79 -22.71 224,123 224,123 554,340 - n.a. -
Oak Creekas of 2025-06-14 Water Supply 26.4 1,981.09 -18.91 10,483 10,333 39,210 842
Twin Buttes Water Supply 14.1 1,906.98 -33.22 29,560 25,811 182,454 1,935
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.