Ottawa County, Ohio — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Ottawa County, OH?
In Ottawa County, Ohio, public U.S. EPA records track 291 regulated facilities (#47 of 141 in Ohio), including 6 (2.1%) High-Risk sites and $14,160 in federal penalties. Countywide due diligence also covers 70 Safe Drinking Water (SDWIS) facilities, 64 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Ottawa 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📊 Ottawa County, OH Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Ottawa County
ZIP Codes in Ottawa County
Top EPA Regulated Facilities in Ottawa 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • ELMORE, OH (ZIP 43416 Sector) | HIGH (69/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • OAK HARBOR, OH (ZIP 43449 Sector) | HIGH (69/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • OAK HARBOR, OH (ZIP 43619 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PORT CLINTON, OH (ZIP 43452 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • GYPSUM, OH (ZIP 43433 Sector) | MODERATE (60/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ELMORE, OH (ZIP 43416 Sector) | MODERATE (57/100) | Resolved / Historical Non-Compliance (7 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PORT CLINTON, OH (ZIP 43452 Sector) | MODERATE (51/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ELMORE, OH (ZIP 43416 Sector) | MODERATE (46/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| BIRO MFG CO FREE PREVIEW (LOW RISK) | 1114 WEST MAIN STREET, MARBLEHEAD, OH 43440 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| FAMILY DOLLAR #2650 FREE PREVIEW (LOW RISK) | 1800 E PERRY ST, PORT CLINTON, OH 43452 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| GERKEN MATERIALS PLANT NO 15 FREE PREVIEW (LOW RISK) | 3017 N ST RT 590, ROCKY RIDGE, OH 43458 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CONRAIL OAK HARBOR SPILL SITE FREE PREVIEW (LOW RISK) | BOGEL RD AT CONRAIL RR TRACKS, OAK HARBOR, OH 43449 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Ottawa County, Ohio Environmental Due Diligence
How many EPA-regulated environmental sites are in Ottawa County, Ohio?
Public U.S. EPA records track 291 regulated facilities in Ottawa County, Ohio (ranking #47 of 141 jurisdictions in OH). Of those, 6 (2.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 34 (11.7%) have active non-compliance quarters.
Which ZIP codes and cities in Ottawa County have the highest regulated facility density?
Within Ottawa County, the highest concentrations of EPA-tracked facilities are located in ZIP 43452 (Port Clinton, 97 sites), ZIP 43449 (Oak Harbor, 47 sites), ZIP 43430 (Genoa, 28 sites), spanning municipal corridors including Port Clinton (95 sites), Oak Harbor (49 sites), Genoa (27 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Ottawa County?
Across Ottawa County, 149 facilities (51.2% 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 Ottawa County, OH?
Geologic indoor air screening places Ottawa 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 Ottawa County, OH?
Federal records track 70 Safe Drinking Water (SDWIS) facilities, 64 Clean Water Act NPDES permits, and 41 impaired water dischargers in Ottawa County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Ottawa County, OH have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Ottawa 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.