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

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

01-26-2026 to 02-01-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 02-01-2026 Reading Total for Week
Inflow To Lake Oroville 12,488 10,309 10,890 81,140
Total Releases from Hyatt Power Plant (Includes Pumpack) 16,248 399 16,148 49,297
River Valve Flow 0 0 0 0
Spill 0 0 0 0
Storage 2,831,118 2,797,349 2,819,829 -
Flood Control - Amount of Encroachment 0 0 0 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 19,834 3,471 19,834 60,817
Releases to Feather River for Flood Control - - - -
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 02-01-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 50,611 0 7,806 50,611 506
Lake Davis 84,371 75,501 72,982 11,440 75,501 76
Antelope Lake 22,564 21,647 19,328 3,184 21,647 189
Lake Oroville 3,440,276 2,831,118 2,404,046 382,078 2,819,829 31,386
Lake Del Valle 39,914 30,208 28,778 5,750 30,143 64
San Luis Reservoir Total 2,027,835 1,600,406 1,405,750 263,766 1,600,406 31,273
DWR 1,062,180 989,133 960,446 145,233 986,807 99
USBR 965,655 613,599 445,304 118,532 613,599 31,174
Pyramid Lake 169,901 157,274 150,446 29,114 154,782 1,623
Castaic Lake 319,247 257,611 248,811 43,896 251,687 -1,144
Silverwood Lake 74,970 63,896 56,148 12,449 63,896 2,585
Lake Perris 132,614 124,647 121,475 18,938 121,475 -993
Total (4) 5,401,512 4,601,646 4,062,460 659,888 4,576,378 34,391

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 02/01 from 1979 through 2026.
(3)
Since 01-25-2026.
(4)
Does not include USBR San Luis Reservoir storage.