Milwaukee County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Milwaukee County, WI?
In Milwaukee County, Wisconsin, public U.S. EPA records track 5,147 regulated facilities (#1 of 94 in Wisconsin), including 19 (0.4%) High-Risk sites and $18,400,004 in federal penalties. Countywide due diligence also covers 117 Safe Drinking Water (SDWIS) facilities, 453 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).
Milwaukee 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📊 Milwaukee County, WI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Milwaukee County
ZIP Codes in Milwaukee County
Top EPA Regulated Facilities in Milwaukee 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 • OAK CREEK, WI (ZIP 53154 Sector) | HIGH (88/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SAINT FRANCIS, WI (ZIP 53235 Sector) | HIGH (82/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MILWAUKEE, WI (ZIP 53209 Sector) | HIGH (82/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SAINT FRANCIS, WI (ZIP 53235 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MILWAUKEE, WI (ZIP 53204 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MILWAUKEE, WI (ZIP 53215 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • OAK CREEK, WI (ZIP 53154 Sector) | HIGH (65/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • FRANKLIN, WI (ZIP 53132 Sector) | HIGH (64/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| ALDRICH CHEMICAL CO INC FREE PREVIEW (LOW RISK) | 940 ST PAUL AVE, MILWAUKEE, WI 53233 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| WI DOT BRIDGE B-40-336 FREE PREVIEW (LOW RISK) | STH 190 EB OVER MENOMONEE RIVER PARKWAY, WAUWATOSA, WI 53222 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| MEIJER STORE #283 FREE PREVIEW (LOW RISK) | 171 W TOWN SQUARE WAY, OAK CREEK, WI 53154 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| SEVEN UP BOTTLING CO FREE PREVIEW (LOW RISK) | 1650 S 108TH ST, WEST ALLIS, WI 53214 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Milwaukee County, Wisconsin Environmental Due Diligence
How many EPA-regulated environmental sites are in Milwaukee County, Wisconsin?
Public U.S. EPA records track 5,147 regulated facilities in Milwaukee County, Wisconsin (ranking #1 of 94 jurisdictions in WI). Of those, 19 (0.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 43 (0.8%) have active non-compliance quarters.
Which ZIP codes and cities in Milwaukee County have the highest regulated facility density?
Within Milwaukee County, the highest concentrations of EPA-tracked facilities are located in ZIP 53209 (Milwaukee, 337 sites), ZIP 53214 (West Allis, 316 sites), ZIP 53207 (Milwaukee, 272 sites), spanning municipal corridors including Milwaukee (3,332 sites), West Allis (349 sites), Oak Creek (262 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Milwaukee County?
Across Milwaukee County, 4,567 facilities (88.7% 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 Milwaukee County, WI?
Geologic indoor air screening places Milwaukee 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 Milwaukee County, WI?
Federal records track 117 Safe Drinking Water (SDWIS) facilities, 453 Clean Water Act NPDES permits, and 320 impaired water dischargers in Milwaukee County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Milwaukee County, WI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Milwaukee 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.