WATERTOWN POWER PLANT
OperatingPower plant
- Capacity
- 68 MW
- County
- Codington County
- Operator
- MISSOURI BASIN MUNI POWER AGNY
- Status
- Operating
- Commissioned
- 1978
- EIA plant ID
- 7247
- Coordinates
- 44.9017, -97.1085
WATERTOWN POWER PLANT, a 68 MW power plant in Codington County, South Dakota. Operated by MISSOURI BASIN MUNI POWER AGNY, commissioned 1978.
Weather peril exposure
WATERTOWN POWER PLANT is a 68 MW power plant in Codington County, SD, operated by MISSOURI BASIN MUNI POWER AGNY, commissioned in 1978. Codington County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.8 of 5 at the 45th national percentile. Heat wave is the leading peril, rated Very Low by FEMA at the 83rd percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to this plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Codington County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Very Low | 83rd | 4.3 of 5 | 2.6 |
| Tornado | Relatively Moderate | 79th | 4.2 of 5 | 0.42 |
| Riverine flooding | Relatively Low | 77th | 4.1 of 5 | 1.7 |
| Ice storm | Relatively High | 77th | 4.1 of 5 | 0.54 |
| Winter weather | Relatively High | 72nd | 3.9 of 5 | 22.5 |
| Strong wind | Relatively Moderate | 71st | 3.8 of 5 | 2.9 |
| Wildfire | Relatively Low | 67th | 3.7 of 5 | <0.01 |
| Hail | Relatively Low | 52nd | 3.1 of 5 | 4.1 |
| Lightning | Very Low | 21st | 1.8 of 5 | 33.3 |
| Earthquake | Very Low | 12th | 1.5 of 5 | <0.01 |
Perils not assessed in Codington 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 |
Model hail, wind and flood exposure for Codington 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.