WALTON STREET SUBSTATION
OperatingOil power plant
- Capacity
- 6 MW
- Primary fuel
- Oil
- County
- St. Francois County
- Operator
- CITY OF FARMINGTON - (MO)
- Status
- Operating
- Commissioned
- 2003
- EIA plant ID
- 56598
- Coordinates
- 37.7880, -90.4337
WALTON STREET SUBSTATION, a 6 MW Oil power plant in St. Francois County, Missouri. Operated by CITY OF FARMINGTON - (MO), commissioned 2003.
Weather peril exposure
WALTON STREET SUBSTATION is a 6 MW oil power plant in St. Francois County, MO, operated by CITY OF FARMINGTON - (MO), commissioned in 2003. St. Francois County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.7 of 5 at the 67th national percentile. Earthquake is the leading peril, rated Relatively Moderate by FEMA at the 91st percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
St. Francois County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively Moderate | 91st | 4.6 of 5 | <0.01 |
| Strong wind | Relatively High | 90th | 4.6 of 5 | 4.3 |
| Winter weather | Relatively Moderate | 81st | 4.2 of 5 | 8.1 |
| Hail | Relatively Moderate | 71st | 3.8 of 5 | 4.5 |
| Tornado | Relatively Moderate | 65th | 3.6 of 5 | 0.32 |
| Riverine flooding | Relatively Low | 59th | 3.3 of 5 | 1.0 |
| Heat wave | Relatively Moderate | 50th | 3.0 of 5 | 10.9 |
| Wildfire | Very Low | 49th | 3.0 of 5 | <0.01 |
| Ice storm | Relatively Low | 41st | 2.7 of 5 | 0.87 |
| Hurricane | Very Low | 28th | 2.1 of 5 | 0.02 |
| Lightning | Relatively Moderate | 24th | 2.0 of 5 | 54.6 |
Perils not assessed in St. Francois 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 |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for St. Francois 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.