Ozaukee County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Ozaukee County, WI?
In Ozaukee County, Wisconsin, public U.S. EPA records track 910 regulated facilities (#14 of 94 in Wisconsin), including 3 (0.3%) High-Risk sites and $107,100 in federal penalties. Countywide due diligence also covers 313 Safe Drinking Water (SDWIS) facilities, 133 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Ozaukee County, WI 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Ozaukee County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Ozaukee County
Top EPA Regulated Facilities in Ozaukee County, WI
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 • CEDARBURG, WI (ZIP 53012 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • PORT WASHINGTON, WI (ZIP 53074 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (11 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • GRAFTON, WI (ZIP 53024 Sector) | MODERATE (50/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • CEDARBURG, WI (ZIP 53012 Sector) | MODERATE (49/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SAUKVILLE, WI (ZIP 53080 Sector) | MODERATE (46/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SAUKVILLE, WI (ZIP 53080 Sector) | MODERATE (42/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • FREDONIA, WI (ZIP 53021 Sector) | MODERATE (40/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MEQUON, WI (ZIP 53092 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| GREDE FOUNDRIES INC FREE PREVIEW (LOW RISK) | 225 N MIWAUKEE ST, FREDONIA, WI 53921 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| EICKSTEDT PROPERTY FREE PREVIEW (LOW RISK) | 11716 CEDAR CREEK RD, CEDARBURG, WI 53012 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| BETTY JOHNSON LLC FREE PREVIEW (LOW RISK) | 161 N GREEN BAY RD, THIENSVILLE, WI 53092 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| TIRES UNLIMITED FREE PREVIEW (LOW RISK) | 1557 N WISCONSIN, PORT WASHINGTON, WI 53074 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Ozaukee County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in Ozaukee County, Wisconsin?
Public U.S. EPA records track 910 regulated facilities in Ozaukee County, Wisconsin (ranking #14 of 94 jurisdictions in WI). Of those, 3 (0.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 32 (3.5%) have active non-compliance quarters.
Which ZIP codes and cities in Ozaukee County have the highest regulated facility density?
Within Ozaukee County, the highest concentrations of EPA-tracked facilities are located in ZIP 53092 (Thiensville, 196 sites), ZIP 53024 (Grafton, 127 sites), ZIP 53074 (Port Washington, 108 sites), spanning municipal corridors including Mequon (178 sites), Grafton (136 sites), Port Washington (111 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Ozaukee County?
Across Ozaukee County, 479 facilities (52.6% 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 Ozaukee County, WI?
Geologic indoor air screening places Ozaukee 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 Ozaukee County, WI?
Federal records track 313 Safe Drinking Water (SDWIS) facilities, 133 Clean Water Act NPDES permits, and 57 impaired water dischargers in Ozaukee County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does Ozaukee County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Ozaukee 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.