Knox County, Ohio — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Knox County, Ohio, public U.S. EPA records track 259 regulated facilities (#53 of 141 in Ohio), including 5 (1.9%) High-Risk sites and $9,600 in federal penalties. Countywide due diligence also covers 75 Safe Drinking Water (SDWIS) facilities, 28 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Knox County, OH 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, OH Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Knox County
Top EPA Regulated Facilities in Knox County, OH
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 • MOUNT VERNON, OH (ZIP 43050 Sector) | MODERATE (49/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • , OH (ZIP Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • , OH (ZIP Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • DANVILLE, OH (ZIP 43014 Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • , OH (ZIP Sector) | MODERATE (38/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • CENTERBURG, OH (ZIP 43011 Sector) | MODERATE (38/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • FREDERICKTOWN, OH (ZIP 43019 Sector) | MODERATE (37/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • , OH (ZIP Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| SIEMENS ENERGY INC FREE PREVIEW (LOW RISK) | 105 N SANDUSKY ST, MOUNT VERNON, OH 43050 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| CENTERBURG VILLAGE PWS FREE PREVIEW (LOW RISK) | 100 JOHNSONVILLE ROAD, CENTERBURG, OH 43011 | LOW (17/100) | Inactive (0 qtrs NC) | $0 |
| BLAINE BOWER GARAGE FREE PREVIEW (LOW RISK) | 18201 COSHOCTON RD, MOUNT VERNON, OH 43050 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| ROBERTSONS FREE PREVIEW (LOW RISK) | 8920 COLUMBUS RD, MOUNT VERNON, OH 43050 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Knox County, Ohio Environmental Due Diligence
How many EPA-regulated environmental sites are in Knox County, Ohio?
Public U.S. EPA records track 259 regulated facilities in Knox County, Ohio (ranking #53 of 141 jurisdictions in OH). Of those, 5 (1.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 20 (7.7%) have active non-compliance quarters.
Which ZIP codes and cities in Knox County have the highest regulated facility density?
Within Knox County, the highest concentrations of EPA-tracked facilities are located in ZIP 43050 (Mount Vernon, 138 sites), ZIP 43019 (Fredericktown, 30 sites), ZIP 43011 (Centerburg, 17 sites), spanning municipal corridors including Mount Vernon (127 sites), Fredericktown (30 sites), Danville (10 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Knox County?
Across Knox County, 135 facilities (52.1% 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, OH?
Geologic indoor air screening places Knox 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, OH?
Federal records track 75 Safe Drinking Water (SDWIS) facilities, 28 Clean Water Act NPDES permits, and 23 impaired water dischargers in Knox County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Knox County, OH have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Knox 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.