Timestamp: 04-20-2026 07:01:06
STATE OF CALIFORNIA
DEPARTMENT OF WATER RESOURCES
THE RESOURCES AGENCY

DIVISION OF OPERATIONS AND MAINTENANCE

SUMMARY OF SWP RESERVOIR

04-13-2026 to 04-19-2026

All Values in (AF)

Oroville Complex This Week Maximum Day This Week Minimum Day 04-19-2026 Reading Total for Week
Inflow To Lake Oroville 22,961 12,301 12,301 114,142
Total Releases from Hyatt Power Plant (Includes Pumpack) 7,101 4,247 6,249 41,458
River Valve Flow 0 0 0 0
Spill 4,314 3,471 3,570 25,635
Storage 3,266,237 3,232,615 3,266,237 -
Flood Control - Amount of Encroachment 198,642 118,679 118,679 -
Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) 9,917 9,917 9,917 69,419
Releases to Feather River for Flood Control 7,835 7,834 7,835 54,839
Reservoir Storage Operational Capacity This Year Maximum Storage (1) This Year Minimum Storage (1) Average Storage (2) 04-19-2026 Reading Net Change this Week (3)
Frenchman Lake 55,475 57,038 46,498 9,677 56,030 -143
Lake Davis 84,371 83,050 72,982 13,220 82,970 199
Antelope Lake 22,564 23,609 19,328 4,183 22,947 -131
Lake Oroville 3,440,276 3,266,237 2,404,046 498,615 3,266,237 45,963
Lake Del Valle 39,914 38,102 28,778 7,136 38,102 1,467
San Luis Reservoir Total 2,027,835 1,815,496 1,405,750 298,205 1,769,842 -24,542
DWR 1,062,180 1,063,619 960,446 158,267 990,101 -19,502
USBR 965,655 784,781 445,304 139,937 779,741 -5,040
Pyramid Lake 169,901 169,025 150,446 30,619 162,283 -1,231
Castaic Lake 319,247 275,950 248,811 50,588 271,817 1,007
Silverwood Lake 74,970 72,436 49,526 12,933 71,378 -982
Lake Perris 132,614 124,647 107,043 20,582 113,616 3,912
Total (4) 5,401,512 5,173,713 4,087,904 805,820 5,075,481 30,559

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 04/19 from 1979 through 2026.
(3)
Since 04-12-2026.
(4)
Does not include USBR San Luis Reservoir storage.