Middlesex County, Connecticut — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Middlesex County, CT?
In Middlesex County, Connecticut, public U.S. EPA records track 1,039 regulated facilities (#6 of 16 in Connecticut), including 22 (2.1%) High-Risk sites and $73,525 in federal penalties. Countywide due diligence also covers 332 Safe Drinking Water (SDWIS) facilities, 249 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Middlesex 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📊 Middlesex County, CT Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Middlesex County
ZIP Codes in Middlesex County
Top EPA Regulated Facilities in Middlesex 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 • DURHAM, CT (ZIP 06422 Sector) | HIGH (65/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • OLD SAYBROOK, CT (ZIP 06475 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • PORTLAND, CT (ZIP 06480 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • WESTBROOK, CT (ZIP 06498 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • OLD SAYBROOK, CT (ZIP 06475 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • CLINTON, CT (ZIP 06413 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • OLD SAYBROOK, CT (ZIP 06475 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • EAST HADDAM, CT (ZIP 06469 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| MEDWASTE MANAGEMENT OF NEW ENGLAND FREE PREVIEW (LOW RISK) | 69 OLD FARMS WEST, MIDDLETOWN, CT 06457 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Middlesex County, Connecticut Environmental Due Diligence
How many EPA-regulated environmental sites are in Middlesex County, Connecticut?
Public U.S. EPA records track 1,039 regulated facilities in Middlesex County, Connecticut (ranking #6 of 16 jurisdictions in CT). Of those, 22 (2.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 102 (9.8%) have active non-compliance quarters.
Which ZIP codes and cities in Middlesex County have the highest regulated facility density?
Within Middlesex County, the highest concentrations of EPA-tracked facilities are located in ZIP 06457 (Middletown, 206 sites), ZIP 06475 (Old Saybrook, 73 sites), ZIP 06413 (Clinton, 72 sites), spanning municipal corridors including Middletown (208 sites), Old Saybrook (73 sites), Clinton (72 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Middlesex County?
Across Middlesex County, 448 facilities (43.1% 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 Middlesex County, CT?
Geologic indoor air screening places Middlesex 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 Middlesex County, CT?
Federal records track 332 Safe Drinking Water (SDWIS) facilities, 249 Clean Water Act NPDES permits, and 82 impaired water dischargers in Middlesex County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does Middlesex County, CT have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Middlesex 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.