Timestamp: 06-22-2026 07:01:06
STATE OF CALIFORNIA
DEPARTMENT OF WATER RESOURCES
THE RESOURCES AGENCY

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

06-15-2026 to 06-21-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 06-21-2026 Reading Total for Week
Inflow To Lake Oroville 4,860 3,217 3,282 29,343
Total Releases from Hyatt Power Plant (Includes Pumpack) 15,199 12,121 14,267 96,269
River Valve Flow 0 0 0 0
Spill 0 0 0 0
Storage 3,248,126 3,186,681 3,186,681 -
Flood Control - Amount of Encroachment 0 0 0 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 9,917 7,934 9,917 65,124
Releases to Feather River for Flood Control - - - -
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 06-21-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 57,038 46,498 40,094 51,344 -786
Lake Davis 84,371 83,169 72,982 65,100 79,423 -782
Antelope Lake 22,564 23,609 19,328 21,609 21,494 -289
Lake Oroville 3,440,276 3,384,884 2,404,046 2,820,039 3,186,681 -69,074
Lake Del Valle 39,914 40,418 28,778 39,462 39,344 -613
San Luis Reservoir Total 2,027,835 1,815,496 1,300,571 1,254,524 1,300,571 -93,879
DWR 1,062,180 1,063,619 674,213 705,245 674,213 -35,789
USBR 965,655 784,781 445,304 549,278 626,358 -58,090
Pyramid Lake 169,901 169,025 150,446 163,157 165,650 1,178
Castaic Lake 319,247 306,020 248,811 276,464 305,329 2,413
Silverwood Lake 74,970 72,686 49,526 68,748 71,768 -688
Lake Perris 132,614 124,647 107,043 102,743 117,955 45
Total (4) 5,401,512 5,325,115 3,801,671 4,302,661 4,713,201 -104,385

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 06/21 from 1979 through 2026.
(3)
Since 06-14-2026.
(4)
Does not include USBR San Luis Reservoir storage.