Mason County, Kentucky — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Mason County, Kentucky, public U.S. EPA records track 142 regulated facilities (#67 of 133 in Kentucky), including 4 (2.8%) High-Risk sites and $5,300,000 in federal penalties. Countywide due diligence also covers 4 Safe Drinking Water (SDWIS) facilities, 81 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Mason County, KY 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, KY 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, KY
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 • MAYSVILLE, KY (ZIP 41056 Sector) | HIGH (69/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | HIGH (69/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | MODERATE (48/100) | Violation Identified (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | MODERATE (37/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | MODERATE (36/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | MODERATE (36/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MAYSVILLE, KY (ZIP 41056 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| FLEMING-MASON COUNTY AIRPORT FREE PREVIEW (LOW RISK) | 7079 AIRPORT RD, MAYSVILLE, KY 41056 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| PRECISION PULLEY & IDLER FREE PREVIEW (LOW RISK) | 1072 PROGRESS WAY, MAYSVILLE, KY 41056 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| MAYSVILLE STP FREE PREVIEW (LOW RISK) | 1029 W SECOND ST, MAYSVILLE, KY 41056 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| MAYSVILLE/HAYSWOOD HOSPITAL FREE PREVIEW (LOW RISK) | FOURTH & MARKET STREET, MAYSVILLE, KY 41056 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mason County, Kentucky Environmental Due Diligence
How many EPA-regulated environmental sites are in Mason County, Kentucky?
Public U.S. EPA records track 142 regulated facilities in Mason County, Kentucky (ranking #67 of 133 jurisdictions in KY). Of those, 4 (2.8%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 5 (3.5%) 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 41056 (Maysville, 130 sites), ZIP 41055 (Mayslick, 5 sites), ZIP 41096 (Washington, 4 sites), spanning municipal corridors including Maysville (127 sites), Washington (5 sites), Mays Lick (4 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Mason County?
Across Mason County, 68 facilities (47.9% 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, KY?
Geologic indoor air screening places Mason 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 Mason County, KY?
Federal records track 4 Safe Drinking Water (SDWIS) facilities, 81 Clean Water Act NPDES permits, and 26 impaired water dischargers in Mason County, alongside 5 historical FEMA federal disaster declarations (4 flood/storm events).
Does Mason County, KY have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Mason County indicates a HIGH 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.