Knox County, Maine — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Knox County, Maine, public U.S. EPA records track 48 regulated facilities (#24 of 32 in Maine), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 39 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Knox County, ME 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Knox County, ME Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Knox County
ZIP Codes in Knox County
Top EPA Regulated Facilities in Knox County, ME
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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • ISLE AU HAUT, ME (ZIP 04645 Sector) | MODERATE (35/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • APPLETON, ME (ZIP 04862 Sector) | MODERATE (30/100) | Inactive (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WARREN, ME (ZIP 04864 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| HURRICANE ISLAND OUTWARD BOUND SCHOOL FREE PREVIEW (LOW RISK) | 113 MARINA RD, SOUTH THOMASTON, ME 04858 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| FAIR CAPE WOODWORKS, INC. FREE PREVIEW (LOW RISK) | 320 WEST ST, ROCKPORT, ME 04856 | LOW (13/100) | Unknown (0 qtrs NC) | $0 |
| SHM ROCKLAND FREE PREVIEW (LOW RISK) | 56 NEW COUNTY RD, ROCKLAND, ME 04841 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| DORR WOODCARVING AND SIGN CO LLC FREE PREVIEW (LOW RISK) | 435 COMMERCIAL ST, ROCKPORT, ME 04856 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • VINALHAVEN, ME (ZIP 04863 Sector) | LOW (13/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • ROCKLAND, ME (ZIP 04841 Sector) | LOW (13/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • CAMDEN, ME (ZIP 04843 Sector) | LOW (13/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WARREN, ME (ZIP 04864 Sector) | LOW (12/100) | Unknown (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • THOMASTON, ME (ZIP 04861 Sector) | LOW (12/100) | Unknown (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Knox County, Maine Environmental Due Diligence
How many EPA-regulated environmental sites are in Knox County County, Maine?
Public U.S. EPA records track 48 regulated facilities in Knox County County, Maine (ranking #24 of 32 jurisdictions in ME). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (4.2%) have active non-compliance quarters.
Which ZIP codes and cities in Knox County County have the highest regulated facility density?
Within Knox County County, the highest concentrations of EPA-tracked facilities are located in ZIP 04856 (Rockport, 34 sites), ZIP 04858 (South Thomaston, 8 sites), ZIP 04645 (Isle Au Haut, 1 sites), spanning municipal corridors including Rockport (34 sites), South Thomaston (8 sites), Isle Au Haut (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Knox County County?
Across Knox County County, 0 facilities (0.0% 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 Knox County County, ME?
Geologic indoor air screening places Knox County County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Knox County County, ME?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 39 Clean Water Act NPDES permits, and 1 impaired water dischargers in Knox County County, alongside 5 historical FEMA federal disaster declarations (5 flood/storm events).
Does Knox County, ME have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Knox County indicates a LOW 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.