WHITE ROCK/SLAB CREEK
OperatingHydro power plant
- Capacity
- 266 MW
- Primary fuel
- Hydro
- County
- El Dorado County
- Operator
- SACRAMENTO MUNICIPAL UTIL DIST
- Status
- Operating
- Commissioned
- 1968
- EIA plant ID
- 435
- Coordinates
- 38.7653, -120.7874
WHITE ROCK/SLAB CREEK, a 266 MW Hydro power plant in El Dorado County, California. Operated by SACRAMENTO MUNICIPAL UTIL DIST, commissioned 1968.
Weather peril exposure
WHITE ROCK/SLAB CREEK is a 266 MW hydro power plant in El Dorado County, CA, operated by SACRAMENTO MUNICIPAL UTIL DIST, commissioned in 1968. El Dorado County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.5 of 5 at the 14th national percentile. Wildfire is the leading peril, rated Relatively High by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
El Dorado County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively High | 98th | 4.9 of 5 | 0.01 |
| Earthquake | Relatively Moderate | 86th | 4.4 of 5 | 0.02 |
| Riverine flooding | Relatively Moderate | 77th | 4.1 of 5 | 1.1 |
| Heat wave | Relatively Low | 61st | 3.4 of 5 | 4.4 |
| Tornado | Very Low | 6th | 1.2 of 5 | 0.15 |
| Strong wind | Relatively Low | 4th | 1.1 of 5 | 0.07 |
| Winter weather | Relatively High | 3rd | 1.1 of 5 | 28.5 |
| Lightning | Relatively Moderate | 3rd | 1.1 of 5 | 14.4 |
| Hail | Very Low | 1st | 1.0 of 5 | 0.16 |
Perils not assessed in El Dorado County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
| Ice storm | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for El Dorado County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.