Monroe County, Wisconsin — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Monroe County, Wisconsin, public U.S. EPA records track 387 regulated facilities (#38 of 94 in Wisconsin), including 2 (0.5%) High-Risk sites and $33,284 in federal penalties. Countywide due diligence also covers 87 Safe Drinking Water (SDWIS) facilities, 89 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Monroe 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📊 Monroe County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Monroe County
Top EPA Regulated Facilities in Monroe 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • FORT MCCOY, WI (ZIP 54656 Sector) | HIGH (75/100) | Violation Identified (9 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SPARTA, WI (ZIP 54656 Sector) | MODERATE (50/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • TOMAH, WI (ZIP 54660 Sector) | MODERATE (44/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NORWALK, WI (ZIP 54648 Sector) | MODERATE (41/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NORWALK, WI (ZIP 54648 Sector) | MODERATE (41/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • WYEVILLE, WI (ZIP 54660 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • JEFFERSON, TOWN OF, WI (ZIP 54619 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • TOMAH, WI (ZIP 54660 Sector) | MODERATE (38/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| LEMONWEIR SCHOOL FREE PREVIEW (LOW RISK) | 711 N GLENDALE AVENUE, TOMAH, WI 54660 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| OLSONS STANDARD SERVICE STA FREE PREVIEW (LOW RISK) | 801 FRONT ST, CASHTON, WI 54619 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CULPEPER WOOD PRESERVERS FREE PREVIEW (LOW RISK) | 406 A TOWNLINE RD, TOMAH, WI 54660 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| WI DOT BRIDGE B41-0083-0123 FREE PREVIEW (LOW RISK) | IH90 STH 27 INTERCHNG STH 27, SPARTA, WI 54656 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Monroe County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in Monroe County, Wisconsin?
Public U.S. EPA records track 387 regulated facilities in Monroe County, Wisconsin (ranking #38 of 94 jurisdictions in WI). Of those, 2 (0.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 18 (4.7%) have active non-compliance quarters.
Which ZIP codes and cities in Monroe County have the highest regulated facility density?
Within Monroe County, the highest concentrations of EPA-tracked facilities are located in ZIP 54660 (Tomah, 121 sites), ZIP 54656 (Sparta, 117 sites), ZIP 54618 (La Grange, 21 sites), spanning municipal corridors including Tomah (120 sites), Sparta (117 sites), Warrens (9 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Monroe County?
Across Monroe County, 196 facilities (50.6% 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 Monroe County, WI?
Geologic indoor air screening places Monroe 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 Monroe County, WI?
Federal records track 87 Safe Drinking Water (SDWIS) facilities, 89 Clean Water Act NPDES permits, and 31 impaired water dischargers in Monroe County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does Monroe County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Monroe County indicates a LOW 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.