Timestamp: 05-04-2026 07:01:07
DIVISION OF OPERATIONS AND MAINTENANCE
SUMMARY OF SWP RESERVOIR
04-27-2026 to 05-03-2026
All Values in (AF)
| Oroville Complex | This Week Maximum Day | This Week Minimum Day | 05-03-2026 Reading | Total for Week |
|---|---|---|---|---|
| Inflow To Lake Oroville | 11,649 | 8,546 | 8,546 | 70,217 |
| Total Releases from Hyatt Power Plant (Includes Pumpack) | 6,667 | 2,993 | 2,993 | 27,421 |
| River Valve Flow | 0 | 0 | 0 | 0 |
| Spill | 1,339 | 0 | 0 | 1,339 |
| Storage | 3,336,790 | 3,299,944 | 3,336,790 | - |
| Flood Control - Amount of Encroachment | 90,221 | 23,817 | 23,817 | - |
| Releases to Feather River (Sum of River Outlet and Diversion Dam Releases) | 7,025 | 2,777 | 2,777 | 29,635 |
| Releases to Feather River for Flood Control | 4,942 | 694 | 694 | 15,054 |
| Reservoir Storage | Operational Capacity | This Year Maximum Storage (1) | This Year Minimum Storage (1) | Average Storage (2) | 05-03-2026 Reading | Net Change this Week (3) |
|---|---|---|---|---|---|---|
| Frenchman Lake | 55,475 | 57,038 | 46,498 | 42,551 | 55,903 | -32 |
| Lake Davis | 84,371 | 83,090 | 72,982 | 66,017 | 82,930 | -40 |
| Antelope Lake | 22,564 | 23,609 | 19,328 | 22,345 | 22,797 | -75 |
| Lake Oroville | 3,440,276 | 3,336,790 | 2,404,046 | 2,839,253 | 3,336,790 | 40,018 |
| Lake Del Valle | 39,914 | 40,418 | 28,778 | 39,411 | 40,241 | 700 |
| San Luis Reservoir Total | 2,027,835 | 1,815,496 | 1,405,750 | 1,680,532 | 1,724,951 | -21,069 |
| DWR | 1,062,180 | 1,063,619 | 947,097 | 890,101 | 947,097 | -20,080 |
| USBR | 965,655 | 784,781 | 445,304 | 790,431 | 777,854 | -989 |
| Pyramid Lake | 169,901 | 169,025 | 150,446 | 163,579 | 161,545 | -3,433 |
| Castaic Lake | 319,247 | 276,662 | 248,811 | 282,991 | 274,974 | 6,132 |
| Silverwood Lake | 74,970 | 72,436 | 49,526 | 69,220 | 72,178 | 277 |
| Lake Perris | 132,614 | 124,647 | 107,043 | 104,825 | 117,487 | 133 |
| Total (4) | 5,401,512 | 5,247,334 | 4,074,555 | 4,520,293 | 5,111,942 | 23,600 |
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 05/03 from 1979 through 2026.
- (3)
- Since 04-26-2026.
- (4)
- Does not include USBR San Luis Reservoir storage.