Timestamp: 04-06-2026 07:01:05
STATE OF CALIFORNIA
DEPARTMENT OF WATER RESOURCES
THE RESOURCES AGENCY

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

03-30-2026 to 04-05-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 04-05-2026 Reading Total for Week
Inflow To Lake Oroville 20,569 10,520 11,520 95,108
Total Releases from Hyatt Power Plant (Includes Pumpack) 3,469 809 809 16,389
River Valve Flow 0 0 0 0
Spill 0 0 0 0
Storage 3,153,622 3,082,724 3,153,622 -
Flood Control - Amount of Encroachment 102,216 32,971 84,624 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 3,471 2,083 2,083 19,834
Releases to Feather River for Flood Control 1,189 0 0 2,477
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 04-05-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 57,038 46,498 9,235 56,205 -144
Lake Davis 84,371 81,898 72,982 12,653 81,858 514
Antelope Lake 22,564 23,609 19,328 4,032 23,031 0
Lake Oroville 3,440,276 3,153,622 2,404,046 473,660 3,153,622 77,669
Lake Del Valle 39,914 35,716 28,778 6,889 35,716 671
San Luis Reservoir Total 2,027,835 1,815,496 1,405,750 302,605 1,798,405 -11,836
DWR 1,062,180 1,063,619 960,446 162,637 1,022,720 -16,875
USBR 965,655 775,685 445,304 139,967 775,685 5,039
Pyramid Lake 169,901 169,025 150,446 30,986 167,012 3,234
Castaic Lake 319,247 271,213 248,811 49,667 269,605 1,906
Silverwood Lake 74,970 70,337 49,526 12,860 70,337 3,496
Lake Perris 132,614 124,647 107,043 20,291 107,388 237
Total (4) 5,401,512 5,050,724 4,087,904 782,910 4,987,494 70,708

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 04/05 from 1979 through 2026.
(3)
Since 03-29-2026.
(4)
Does not include USBR San Luis Reservoir storage.