Timestamp: 01-19-2026 07:01:04
STATE OF CALIFORNIA
DEPARTMENT OF WATER RESOURCES
THE RESOURCES AGENCY

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

01-12-2026 to 01-18-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 01-18-2026 Reading Total for Week
Inflow To Lake Oroville 21,479 16,251 16,845 124,707
Total Releases from Hyatt Power Plant (Includes Pumpack) 9,653 2,396 9,653 32,907
River Valve Flow 0 0 0 0
Spill 7,934 0 0 42,315
Storage 2,726,771 2,688,614 2,726,771 -
Flood Control - Amount of Encroachment 27,480 1,158 1,158 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 10,710 7,438 7,438 67,576
Releases to Feather River for Flood Control 7,239 3,967 3,967 43,279
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 01-18-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 49,309 46,498 7,696 49,309 773
Lake Davis 84,371 75,349 72,982 11,404 75,349 151
Antelope Lake 22,564 21,179 19,328 3,147 21,179 373
Lake Oroville 3,440,276 2,726,771 2,404,046 359,982 2,726,771 49,306
Lake Del Valle 39,914 30,208 28,778 5,831 30,003 -205
San Luis Reservoir Total 2,027,835 1,520,779 1,405,750 245,390 1,520,779 33,243
DWR 1,062,180 976,891 960,446 137,135 975,770 516
USBR 965,655 545,009 445,304 108,255 545,009 32,727
Pyramid Lake 169,901 157,274 151,199 29,147 157,274 4,838
Castaic Lake 319,247 257,611 248,811 44,121 256,671 3,452
Silverwood Lake 74,970 61,127 56,148 12,535 59,563 -771
Lake Perris 132,614 124,647 123,147 18,881 123,147 -590
Total (4) 5,401,512 4,480,366 4,111,383 629,879 4,475,036 57,843

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 01/18 from 1979 through 2026.
(3)
Since 01-11-2026.
(4)
Does not include USBR San Luis Reservoir storage.