Timestamp: 06-22-2026 07:01:06
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.