Timestamp: 08-10-2026 07:01:06
STATE OF CALIFORNIA
DEPARTMENT OF WATER RESOURCES
THE RESOURCES AGENCY

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

08-03-2026 to 08-09-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 08-09-2026 Reading Total for Week
Inflow To Lake Oroville 6,046 4,702 4,702 37,856
Total Releases from Hyatt Power Plant (Includes Pumpack) 24,686 23,263 24,686 167,769
River Valve Flow 0 0 0 0
Spill 0 0 0 0
Storage 2,457,269 2,342,872 2,342,872 -
Flood Control - Amount of Encroachment 0 0 0 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 16,860 16,860 16,860 118,020
Releases to Feather River for Flood Control - - - -
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 08-09-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 57,038 45,779 35,565 45,779 -663
Lake Davis 84,371 83,169 72,982 60,529 73,504 -863
Antelope Lake 22,564 23,609 19,328 19,719 19,635 -268
Lake Oroville 3,440,276 3,384,884 2,342,872 2,318,167 2,342,872 -132,445
Lake Del Valle 39,914 40,418 28,778 38,123 36,233 722
San Luis Reservoir Total 2,027,835 1,815,496 1,137,206 840,730 1,159,303 9,442
DWR 1,062,180 1,063,619 614,873 548,466 763,973 6,178
USBR 965,655 784,781 390,956 292,264 395,330 3,264
Pyramid Lake 169,901 169,025 150,446 162,032 162,835 75
Castaic Lake 319,247 307,884 248,811 264,881 304,768 -561
Silverwood Lake 74,970 72,686 49,526 68,338 72,417 1,239
Lake Perris 132,614 124,647 107,043 99,002 119,878 67
Total (4) 5,401,512 5,326,979 3,680,438 3,614,822 3,941,894 -126,519

Data is preliminary and subject to revision.

Footnotes

(1)
Maximum and Minimum storage in the year the week begins (2026).
(2)
Average storage for each 08/09 from 1979 through 2026.
(3)
Since 08-02-2026.
(4)
Does not include USBR San Luis Reservoir storage.