Norwalk, Connecticut — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Norwalk, CT?
Public U.S. EPA records track 325 regulated facilities in Norwalk, Connecticut (New Haven County), including 7 High-Risk sites (2.2%) and 8 active violators. In addition to industrial waste, Norwalk properties are screened for Tap Water & Watershed Permits (45 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 6 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Norwalk, CT 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Norwalk, CT Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)ZIP Codes in Norwalk, CT
Highest-Scored EPA Regulated Facilities in Norwalk, CT
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 • NORWALK, CT (ZIP 06852 Sector) | MODERATE (52/100) | Violation Identified (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06854 Sector) | MODERATE (47/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06854 Sector) | MODERATE (44/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06854 Sector) | MODERATE (42/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06850 Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06851 Sector) | MODERATE (37/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06851 Sector) | MODERATE (35/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • NORWALK, CT (ZIP 06854 Sector) | MODERATE (35/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| POLYFLON COMPANY FREE PREVIEW (LOW RISK) | 1 WILLARD RD, NORWALK, CT 06851 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| THE NASH ENGINEERING COMPANY FREE PREVIEW (LOW RISK) | 310 WILSON AVENUE, NORWALK, CT 06854 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| HICKS AND OTIS PRINTS, INCORPORATED FREE PREVIEW (LOW RISK) | 9 WILTON AVE., NORWALK, CT 06851 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| HOUR PUBLISHING CO, INC FREE PREVIEW (LOW RISK) | 346 MAIN AVE, NORWALK, CT 06851 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Norwalk, Connecticut Environmental Risk & Radon
How many EPA-regulated facilities are in Norwalk, CT?
U.S. EPA records track 325 regulated facilities in Norwalk, Connecticut, including 7 high-risk sites (2.2%), 8 active violators (2.5%), and 246 RCRA hazardous waste handlers (75.7%).
Which ZIP codes in Norwalk, CT have the most EPA-tracked sites?
Within Norwalk, regulated facilities are primarily concentrated across ZIP 06854 (119 sites), ZIP 06851 (117 sites), ZIP 06850 (60 sites), ZIP 06855 (39 sites).
How can I check a specific house or commercial property in Norwalk, CT?
Enter the exact street address in Norwalk into the FullPropertyReport radius scanner to screen all EPA ECHO, FRS, RCRA, TRI, USDA soil foundation shrink-swell, drinking water (SDWIS), FEMA flood zone, and county radon records within 0.5 to 3.0 miles.
Is tap water safe in Norwalk, CT and how many EPA water permits exist?
In Norwalk, CT, federal registries track 5 Safe Drinking Water (SDWIS) facilities, 40 Clean Water Act NPDES permits, and 25 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Norwalk, CT?
USDA regional soil screening for Norwalk indicates a LOW shrink-swell foundation signal, and New Haven County has recorded 6 federal FEMA disaster declarations (5 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.