Waukesha County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Waukesha County, WI?
In Waukesha County, Wisconsin, public U.S. EPA records track 37 regulated facilities (#76 of 94 in Wisconsin), including 1 (2.7%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 12 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Waukesha 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📊 Waukesha County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Waukesha County
ZIP Codes in Waukesha County
Top EPA Regulated Facilities in Waukesha 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 • OCONOMOWOC, WI (ZIP 53066 Sector) | HIGH (71/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MENOMONEE FALLS, WI (ZIP 53051 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MENOMONEE FALLS, WI (ZIP 53051 Sector) | MODERATE (31/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MENOMONEE FALLS, WI (ZIP 53051 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MENOMONEE FALLS, WI (ZIP 53051 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MENOMONEE FALLS, WI (ZIP 53051 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • NEW BERLIN, WI (ZIP 53151 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MENOMONEE FALLS, WI (ZIP 53051 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| INNIO WAUKESHA GAS ENGINES, INC. FREE PREVIEW (LOW RISK) | 1101 W ST PAUL AVE, WAUKESHA, WI 53188 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| HERAEUS ELECTRO-NITE CO LLC FREE PREVIEW (LOW RISK) | 541 S INDUSTRIAL DR, HARTLAND, WI 53029 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| PAYNE & DOLAN-PW7 FREE PREVIEW (LOW RISK) | CORPORATE OFFICE LOCATED AT N3 W23650 BADINGER ROA, WAUKESHA, WI 53188 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| THERM-TECH OF WAUKESHA, INC. FREE PREVIEW (LOW RISK) | 1511 PEARL STREET, WAUKESHA, WI 53186 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Waukesha County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in Waukesha County County, Wisconsin?
Public U.S. EPA records track 37 regulated facilities in Waukesha County County, Wisconsin (ranking #76 of 94 jurisdictions in WI). Of those, 1 (2.7%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (2.7%) have active non-compliance quarters.
Which ZIP codes and cities in Waukesha County County have the highest regulated facility density?
Within Waukesha County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Waukesha County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Waukesha County County?
Across Waukesha County County, 9 facilities (24.3% 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 Waukesha County County, WI?
Geologic indoor air screening places Waukesha 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 Waukesha County County, WI?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 12 Clean Water Act NPDES permits, and 5 impaired water dischargers in Waukesha County County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Waukesha County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Waukesha 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.