Columbia County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Columbia County, WI?
In Columbia County, Wisconsin, public U.S. EPA records track 548 regulated facilities (#31 of 94 in Wisconsin), including 9 (1.6%) High-Risk sites and $1,110,000 in federal penalties. Countywide due diligence also covers 149 Safe Drinking Water (SDWIS) facilities, 127 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).
Columbia 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📊 Columbia County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Columbia County
ZIP Codes in Columbia County
Top EPA Regulated Facilities in Columbia 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 • CAMBRIA, WI (ZIP 53923 Sector) | HIGH (66/100) | Violation Identified (3 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • PORTAGE, WI (ZIP 53901 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CAMBRIA, WI (ZIP 53923 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PORTAGE, WI (ZIP 53901 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • POYNETTE, WI (ZIP 53955 Sector) | MODERATE (53/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PARDEEVILLE, WI (ZIP 53954 Sector) | MODERATE (52/100) | Violation Identified (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WYOCENA, WI (ZIP 53969 Sector) | MODERATE (51/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • FRIESLAND, WI (ZIP 53935 Sector) | MODERATE (50/100) | Violation Identified (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| RESEARCH PRODUCTS CORP. FREE PREVIEW (LOW RISK) | 300 JOHN STREET, POYNETTE, WI 53955 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| CARQUEST AUTO PARTS #3794 FREE PREVIEW (LOW RISK) | 609 N MAIN ST, LODI, WI 53555 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| WE ENERGIES - GLACIER HILLS WIND PARK (GHWP) FREE PREVIEW (LOW RISK) | N7844 CTH H, CAMBRIA, WI 53923 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| DEA CLANDESTINE LAB CLEANUP-DODGE SHERIF FREE PREVIEW (LOW RISK) | 9938 N STH 73, RANDOLPH, WI 53999 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Columbia County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in Columbia County, Wisconsin?
Public U.S. EPA records track 548 regulated facilities in Columbia County, Wisconsin (ranking #31 of 94 jurisdictions in WI). Of those, 9 (1.6%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 25 (4.6%) have active non-compliance quarters.
Which ZIP codes and cities in Columbia County have the highest regulated facility density?
Within Columbia County, the highest concentrations of EPA-tracked facilities are located in ZIP 53925 (Columbus, 81 sites), ZIP 68124 (Caledonia, 57 sites), ZIP 53578 (Prairie Du Sac, 43 sites), spanning municipal corridors including Portage (118 sites), Columbus (78 sites), Poynette (33 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Columbia County?
Across Columbia County, 272 facilities (49.6% 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 Columbia County, WI?
Geologic indoor air screening places Columbia 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 Columbia County, WI?
Federal records track 149 Safe Drinking Water (SDWIS) facilities, 127 Clean Water Act NPDES permits, and 34 impaired water dischargers in Columbia County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does Columbia County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Columbia 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.