Timestamp: 01-12-2026 07:01:02
STATE OF CALIFORNIA
DEPARTMENT OF WATER RESOURCES
THE RESOURCES AGENCY

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

01-05-2026 to 01-11-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 01-11-2026 Reading Total for Week
Inflow To Lake Oroville 68,400 15,191 15,191 276,448
Total Releases from Hyatt Power Plant (Includes Pumpack) 13,475 2,498 2,744 36,923
River Valve Flow 0 0 0 0
Spill 18,528 0 0 71,765
Storage 2,677,465 2,546,365 2,677,465 -
Flood Control - Amount of Encroachment 2,712 0 2,712 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 29,752 10,661 10,661 112,793
Releases to Feather River for Flood Control 7,190 7,190 7,190 7,190
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 01-11-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 48,536 46,498 7,624 48,536 1,126
Lake Davis 84,371 75,198 72,982 11,356 75,198 831
Antelope Lake 22,564 20,806 19,328 3,122 20,806 738
Lake Oroville 3,440,276 2,677,465 2,404,046 344,620 2,677,465 167,428
Lake Del Valle 39,914 30,208 28,778 5,848 30,208 980
San Luis Reservoir Total 2,027,835 1,487,536 1,405,750 235,725 1,487,536 60,332
DWR 1,062,180 975,254 960,446 133,868 975,254 8,381
USBR 965,655 512,282 445,304 101,858 512,282 51,951
Pyramid Lake 169,901 153,340 151,199 29,223 152,436 745
Castaic Lake 319,247 257,611 253,219 43,687 253,219 -3,843
Silverwood Lake 74,970 60,334 56,148 12,647 60,334 2,449
Lake Perris 132,614 124,647 123,737 18,794 123,737 -842
Total (4) 5,401,512 4,423,399 4,116,381 610,789 4,417,193 177,993

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 01/11 from 1979 through 2026.
(3)
Since 01-04-2026.
(4)
Does not include USBR San Luis Reservoir storage.