Marathon County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Marathon County, WI?
In Marathon County, Wisconsin, public U.S. EPA records track 1,191 regulated facilities (#7 of 94 in Wisconsin), including 14 (1.2%) High-Risk sites and $5,800,000 in federal penalties. Countywide due diligence also covers 228 Safe Drinking Water (SDWIS) facilities, 296 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Marathon 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📊 Marathon County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Marathon County
ZIP Codes in Marathon County
Top EPA Regulated Facilities in Marathon 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 • MOSINEE, WI (ZIP 54455 Sector) | HIGH (95/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WAUSAU, WI (ZIP 54401 Sector) | HIGH (73/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WAUSAU, WI (ZIP 54402 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SCHOFIELD, WI (ZIP 54476 Sector) | HIGH (67/100) | Resolved / Historical Non-Compliance (10 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • ROTHSCHILD, WI (ZIP 54474 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MOSINEE, WI (ZIP 54455 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MARATHON, WI (ZIP 54448 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SPENCER, WI (ZIP 54479 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| DELUXE DISPOSAL FREE PREVIEW (LOW RISK) | 670 COUNTY HWY B, MOSINEE, WI 54455 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| PRIMESOURCE BLDG PRODUCTS INC FREE PREVIEW (LOW RISK) | 835 S 66TH AVE, WAUSAU, WI 54402 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| 180 CUSTOMS FREE PREVIEW (LOW RISK) | 1135 DEPT ST, SCHOFIELD, WI 54476 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| WI DOT BRIDGE B-37-971 FREE PREVIEW (LOW RISK) | E THOMAS ST 0.2M W JCT USH 51, WAUSAU, WI 54401 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Marathon County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in Marathon County, Wisconsin?
Public U.S. EPA records track 1,191 regulated facilities in Marathon County, Wisconsin (ranking #7 of 94 jurisdictions in WI). Of those, 14 (1.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 49 (4.1%) have active non-compliance quarters.
Which ZIP codes and cities in Marathon County have the highest regulated facility density?
Within Marathon County, the highest concentrations of EPA-tracked facilities are located in ZIP 54401 (Wausau, 291 sites), ZIP 54476 (Schofield, 180 sites), ZIP 54455 (Mosinee, 130 sites), spanning municipal corridors including Wausau (377 sites), Schofield (123 sites), Mosinee (98 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Marathon County?
Across Marathon County, 674 facilities (56.6% 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 Marathon County, WI?
Geologic indoor air screening places Marathon 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 Marathon County, WI?
Federal records track 228 Safe Drinking Water (SDWIS) facilities, 296 Clean Water Act NPDES permits, and 54 impaired water dischargers in Marathon County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Marathon County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Marathon County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.