St. Croix County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St. Croix County, WI?
In St. Croix County, Wisconsin, public U.S. EPA records track 6 regulated facilities (#107 of 107 in Wisconsin), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
St. Croix County, WI 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 St. Croix County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in St. Croix County
ZIP Codes in St. Croix County
Top EPA Regulated Facilities in St. Croix County, WI
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 |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • HUDSON, WI (ZIP 54016 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| SAINT CROIX NATIONAL GOLF CLUB FREE PREVIEW (LOW RISK) | 1603 CTH V, SOMERSET, WI 54025 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| NEW RICHMOND GOLF CLUB FREE PREVIEW (LOW RISK) | 1226 GEORGE NORMAN DR, NEW RICHMOND, WI 54017 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| RIVERVIEW LP & OIL CO FREE PREVIEW (LOW RISK) | 448 HIGHWAY 35 N, SOMERSET, WI 54025 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| INTERFACIAL - ENGINEERED SUBSTRATES FREE PREVIEW (LOW RISK) | 283 TROY ST, RIVER FALLS, WI 54022 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — St. Croix County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in St. Croix County County, Wisconsin?
Public U.S. EPA records track 6 regulated facilities in St. Croix County County, Wisconsin (ranking #107 of 107 jurisdictions in WI). 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 St. Croix County County have the highest regulated facility density?
Within St. Croix County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including St. Croix County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St. Croix County County?
Across St. Croix County County, 3 facilities (50.0% 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 St. Croix County County, WI?
Geologic indoor air screening places St. Croix County County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in St. Croix County County, WI?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water Act NPDES permits, and 0 impaired water dischargers in St. Croix County County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does St. Croix County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St. Croix County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.