Mason County, Michigan — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Mason County, Michigan, public U.S. EPA records track 209 regulated facilities (#52 of 138 in Michigan), including 1 (0.5%) High-Risk sites and $5,300,000 in federal penalties. Countywide due diligence also covers 12 Safe Drinking Water (SDWIS) facilities, 37 Clean Water NPDES permits, 4 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).
Mason County, MI 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Mason County, MI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Mason County
ZIP Codes in Mason County
Top EPA Regulated Facilities in Mason County, MI
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 • LUDINGTON, MI (ZIP 49431 Sector) | HIGH (64/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • LUDINGTON, MI (ZIP 49431 Sector) | MODERATE (57/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CUSTER, MI (ZIP 49405 Sector) | MODERATE (47/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • LUDINGTON, MI (ZIP 49431 Sector) | MODERATE (46/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • FOUNTAIN, MI (ZIP 49410 Sector) | MODERATE (45/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • LUDINGTON, MI (ZIP 49431 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LUDINGTON, MI (ZIP 49431 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LUDINGTON, MI (ZIP 49431 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| LUDINGTON PUMPED STORAGE FACILITY FREE PREVIEW (LOW RISK) | 3525 SOUTH LAKESHORE DRIVE, LUDINGTON, MI 49431 | LOW (26/100) | No Violation Identified (0 qtrs NC) | $0 |
| UACJ AUTOMOTIVE-6TH STREET FREE PREVIEW (LOW RISK) | 5175 W 6TH STREET, LUDINGTON, MI 49431 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| AMERASTAR, INC. FREE PREVIEW (LOW RISK) | 502 SOUTH JAMES ST, LUDINGTON, MI 49431 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| HARBISON WALKER REFRACTORIES COMPANY INCORPORATED FREE PREVIEW (LOW RISK) | US 31 SOUTH, LUDINGTON, MI 49431 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mason County, Michigan Environmental Due Diligence
How many EPA-regulated environmental sites are in Mason County, Michigan?
Public U.S. EPA records track 209 regulated facilities in Mason County, Michigan (ranking #52 of 138 jurisdictions in MI). Of those, 1 (0.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 4 (1.9%) have active non-compliance quarters.
Which ZIP codes and cities in Mason County have the highest regulated facility density?
Within Mason County, the highest concentrations of EPA-tracked facilities are located in ZIP 49431 (Ludington, 160 sites), ZIP 49454 (Scottville, 23 sites), ZIP 49405 (Custer, 12 sites), spanning municipal corridors including Ludington (161 sites), Scottville (22 sites), Custer (13 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Mason County?
Across Mason County, 170 facilities (81.3% 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 Mason County, MI?
Geologic indoor air screening places Mason 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 Mason County, MI?
Federal records track 12 Safe Drinking Water (SDWIS) facilities, 37 Clean Water Act NPDES permits, and 28 impaired water dischargers in Mason County, alongside 4 historical FEMA federal disaster declarations (3 flood/storm events).
Does Mason County, MI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Mason 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.