New Haven County, Connecticut — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in New Haven County, CT?
In New Haven County, Connecticut, public U.S. EPA records track 178 regulated facilities (#10 of 16 in Connecticut), including 7 (3.9%) High-Risk sites and $1,187,035 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 146 Clean Water NPDES permits, 6 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
New Haven County, CT 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 New Haven County, CT Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in New Haven County
ZIP Codes in New Haven County
Top EPA Regulated Facilities in New Haven County, 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • MADISON, CT (ZIP 06443 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • GUILFORD, CT (ZIP 06437 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • GUILFORD, CT (ZIP 06437 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NEW HAVEN, CT (ZIP 06513 Sector) | MODERATE (44/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • EAST HAVEN, CT (ZIP 06512 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • GUILFORD, CT (ZIP 06437 Sector) | MODERATE (37/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MILFORD, CT (ZIP 06460 Sector) | MODERATE (34/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • NEW HAVEN, CT (ZIP 06514 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| FEDERAL EXPRESS - ZNHV FREE PREVIEW (LOW RISK) | 29 TOELLES RD, WALLINGFORD, CT 06492 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| MIRION TECHNOLOGIES (CANBERRA) INC FREE PREVIEW (LOW RISK) | 105 PONDVIEW DR, MERIDEN, CT 06450 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| ROMATIC MANUFACTURING COMPANY FREE PREVIEW (LOW RISK) | 1200 MAIN ST S, SOUTHBURY, CT 06488 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| MID STATE MEDICAL CENTER FREE PREVIEW (LOW RISK) | 435 LEWIS AVE, MERIDEN, CT 06451 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — New Haven County, Connecticut Environmental Due Diligence
How many EPA-regulated environmental sites are in New Haven County County, Connecticut?
Public U.S. EPA records track 178 regulated facilities in New Haven County County, Connecticut (ranking #10 of 16 jurisdictions in CT). Of those, 7 (3.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 10 (5.6%) have active non-compliance quarters.
Which ZIP codes and cities in New Haven County County have the highest regulated facility density?
Within New Haven County County, the highest concentrations of EPA-tracked facilities are located in ZIP 06512 (New Haven, 126 sites), ZIP 06770 (Naugatuck, 116 sites), ZIP 06067 (New Haven, 105 sites), spanning municipal corridors including Naugatuck (116 sites), Derby (60 sites), Bethany (26 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in New Haven County County?
Across New Haven County County, 9 facilities (5.1% 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 New Haven County County, CT?
Geologic indoor air screening places New Haven 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 New Haven County County, CT?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 146 Clean Water Act NPDES permits, and 42 impaired water dischargers in New Haven County County, alongside 6 historical FEMA federal disaster declarations (5 flood/storm events).
Does New Haven County, CT have expansive clay soil or foundation risk?
USDA regional soil engineering screening for New Haven County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.