St Clair County, Michigan — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St Clair County, MI?
In St Clair County, Michigan, public U.S. EPA records track 695 regulated facilities (#18 of 138 in Michigan), including 2 (0.3%) High-Risk sites and $5,300,000 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 24 Clean Water NPDES permits, 4 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 Clair 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📊 St Clair County, MI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in St Clair County
ZIP Codes in St Clair County
Top EPA Regulated Facilities in St Clair 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 • PORT HURON, MI (ZIP 48060 Sector) | HIGH (81/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ST CLAIR, MI (ZIP 48079 Sector) | MODERATE (60/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CASCO, MI (ZIP 48064 Sector) | MODERATE (60/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PORT HURON, MI (ZIP 48060 Sector) | MODERATE (53/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MARYSVILLE, MI (ZIP 48040 Sector) | MODERATE (51/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • COTTRELLVILLE, MI (ZIP 48039 Sector) | MODERATE (51/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SAINT CLAIR, MI (ZIP 48079 Sector) | MODERATE (44/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SAINT CLAIR, MI (ZIP 48079 Sector) | MODERATE (43/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| FEDEX FREIGHT-PT HURON FREE PREVIEW (LOW RISK) | 3605 32ND ST, PORT HURON, MI 48060 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| BLACK RIVER MFG-PT HURON FREE PREVIEW (LOW RISK) | 2625 20TH ST, PORT HURON, MI 48060 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| PENHALL CO FREE PREVIEW (LOW RISK) | 42.96723,-82.43265, PORT HURON, MI 48060 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| WEST MARINE PRODUCTS INC FREE PREVIEW (LOW RISK) | 401 MICHIGAN ST, ALGONAC, MI 48001 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — St Clair County, Michigan Environmental Due Diligence
How many EPA-regulated environmental sites are in St Clair County, Michigan?
Public U.S. EPA records track 695 regulated facilities in St Clair County, Michigan (ranking #18 of 138 jurisdictions in MI). Of those, 2 (0.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 12 (1.7%) have active non-compliance quarters.
Which ZIP codes and cities in St Clair County have the highest regulated facility density?
Within St Clair County, the highest concentrations of EPA-tracked facilities are located in ZIP 48079 (Saint Clair, 83 sites), ZIP 48039 (Marine City, 59 sites), ZIP 48001 (Algonac, 53 sites), spanning municipal corridors including Saint Clair (69 sites), Marine City (52 sites), Algonac (50 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St Clair County?
Across St Clair County, 683 facilities (98.3% 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 St Clair County, MI?
Geologic indoor air screening places St Clair 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 Clair County, MI?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 24 Clean Water Act NPDES permits, and 22 impaired water dischargers in St Clair County, alongside 4 historical FEMA federal disaster declarations (3 flood/storm events).
Does St Clair County, MI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St Clair 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.