Larimer County, Wyoming — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Larimer County, WY?
In Larimer County, Wyoming, public U.S. EPA records track 2 regulated facilities (#49 of 49 in Wyoming), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 1 Safe Drinking Water (SDWIS) facilities, 2 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Larimer County, WY 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Larimer County, WY Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Larimer County
ZIP Codes in Larimer County
Top EPA Regulated Facilities in Larimer County, WY
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| FISHER SAND AND GRAVEL HOT MIX ASPHALT M FREE PREVIEW (LOW RISK) | P.O. BOX 271398, WYOMING, WY 80527 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
| RAWAH RANCH-TREATMENT PLANT FOR LODGE WELL FREE PREVIEW (LOW RISK) | 11447 N CR 103, JELM, WY 82063 | LOW (9/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Larimer County, Wyoming Environmental Due Diligence
How many EPA-regulated environmental sites are in Larimer County, Wyoming?
Public U.S. EPA records track 2 regulated facilities in Larimer County, Wyoming (ranking #49 of 49 jurisdictions in WY). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in Larimer County have the highest regulated facility density?
Within Larimer County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Larimer.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Larimer County?
Across Larimer County, 0 facilities (0.0% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Larimer County, WY?
Geologic indoor air screening places Larimer County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Larimer County, WY?
Federal records track 1 Safe Drinking Water (SDWIS) facilities, 2 Clean Water Act NPDES permits, and 0 impaired water dischargers in Larimer County, alongside 7 historical FEMA federal disaster declarations (1 flood/storm events).
Does Larimer County, WY have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Larimer County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.