ZIP 06340 (Groton, CT) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 06340 in Groton, Connecticut (New London County) has 133 EPA-tracked facilities, including 4 High-Risk sites (3.0%), 9 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 06340 are screened across 4 historical New London County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (50), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 06340 (Groton, CT) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 06340 (Groton, CT) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 06340 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 4 High-Risk and 9 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 06340 (Groton, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | HIGH (70/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | HIGH (65/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | MODERATE (56/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | MODERATE (52/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | MODERATE (45/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | MODERATE (45/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • GROTON, CT (ZIP 06340 Sector) | MODERATE (35/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| MIDWAY MAINTENANCE OF WAY BASE FREE PREVIEW (LOW RISK) | 101 INDUSTRIAL DR, GROTON, CT 06340 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| NOANK SHIPYARD FREE PREVIEW (LOW RISK) | 145 PEARL STREET, GROTON (NOANK), CT 06340 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| WALMART STORE 2200 FREE PREVIEW (LOW RISK) | 150 GOLD STAR HWY, GROTON, CT 06340 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| LANMAR AVIATION FREE PREVIEW (LOW RISK) | 145 TOWER AVE, GROTON, CT 06340 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 06340 (Groton, CT) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 06340 (Groton, CT)?
ZIP code 06340 (Groton, CT) contains 133 EPA-tracked facilities, of which 4 (3.0%) are classified in the High-Risk tier, 9 (6.8%) have active compliance violations, and 77 (57.9%) handle RCRA hazardous waste.
How does ZIP 06340 compare to New London County and Connecticut averages?
In ZIP 06340, 3.0% of regulated sites are rated High Risk, compared to 1.4% across New London County and 1.4% statewide in Connecticut.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 06340?
Geologic screening places ZIP 06340 in EPA Zone 1 — High Potential (> 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 06340 (Groton, CT) in a FEMA flood zone and what is the flood disaster history?
New London County has recorded 4 historical FEMA federal disaster declarations (4 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 06340 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 06340 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 06340 indicates a LOW shrink-swell risk signal. Within ZIP 06340, federal registries track 8 SDWIS drinking water facilities, 42 Clean Water NPDES permits, and 20 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.