Dallas Area Reservoirs: Monitored Water Supply Reservoirs are 86.1% full on 2026-09-30

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2026-09-30 86.1 3,377,115 3,306,826 3,841,548
1 day prior 2026-09-29 86.3 3,384,332 3,314,043 3,841,548
2 days prior 2026-09-28 86.4 3,390,771 3,320,482 3,841,548
1 week prior 2026-09-23 87.3 3,422,044 3,351,755 3,841,548
1 month prior 2026-08-30 90.9 3,560,940 3,490,651 3,841,548
3 months prior 2026-06-30 98.6 3,940,460 3,788,459 3,841,548
6 months prior 2026-03-30 96.8 3,790,419 3,719,072 3,841,548
1 year prior 2025-09-30 95.0 3,718,859 3,648,570 3,841,548
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

recent reservoir storage 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)
Forkas of 2026-09-30 Water Supply 81.1 398.40 -4.60 522,960 491,517 606,088 23,335
Grapevineas of 2026-09-30 Water Supply and Flood Control 89.2 532.20 -2.80 145,438 145,438 163,064 6,045
Lavon Water Supply and Flood Control 78.5 487.52 -4.48 324,347 321,506 409,757 18,617
Lewisvilleas of 2026-09-30 Water Supply and Flood Control 82.1 518.09 -3.91 498,205 462,531 563,228 24,433
Ray Hubbardas of 2026-09-30 Water Supply 82.4 431.62 -3.88 362,278 362,278 439,559 19,265
Ray Robertsas of 2026-09-30 Water Supply and Flood Control 93.4 630.63 -1.87 736,553 736,230 788,167 27,218
Tawakonias of 2026-09-30 Water Supply 90.4 435.17 -2.33 788,176 788,168 871,685 34,878