Mercer County, New Jersey — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Mercer County, NJ?
In Mercer County, New Jersey, public U.S. EPA records track 2,643 regulated facilities (#12 of 44 in New Jersey), including 62 (2.3%) High-Risk sites and $6,550,358 in federal penalties. Countywide due diligence also covers 130 Safe Drinking Water (SDWIS) facilities, 816 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).
Mercer County, NJ 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Mercer County, NJ Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Mercer County
ZIP Codes in Mercer County
Top EPA Regulated Facilities in Mercer County, NJ
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 • WEST TRENTON, NJ (ZIP 08628 Sector) | HIGH (87/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • HAMILTON, NJ (ZIP 08610 Sector) | HIGH (84/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • HAMILTON, NJ (ZIP 08619 Sector) | HIGH (81/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • TRENTON, NJ (ZIP 08619 Sector) | HIGH (77/100) | Significant Violation (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PRINCETON, NJ (ZIP 08540 Sector) | HIGH (75/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PENNINGTON, NJ (ZIP 08534 Sector) | HIGH (75/100) | Violation Identified (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PRINCETON, NJ (ZIP 08540 Sector) | HIGH (73/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • TRENTON, NJ (ZIP 08611 Sector) | HIGH (72/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| BOBS AUTO BODY FREE PREVIEW (LOW RISK) | 1865 E STATE ST, TRENTON, NJ 08619 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| MORRIS WHEELER & CO INC FREE PREVIEW (LOW RISK) | 82 90 STOKES AVE, EWING TWP, NJ 08638 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| JOHNSON & JOHNSON AVIATION FREE PREVIEW (LOW RISK) | 1 PITCAIRN AVENUE, WEST TRENTON, NJ 08628 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| VALLEY OIL CO FREE PREVIEW (LOW RISK) | SOMERSET ST - AT THE END, HOPEWELL, NJ 08525 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mercer County, New Jersey Environmental Due Diligence
How many EPA-regulated environmental sites are in Mercer County, New Jersey?
Public U.S. EPA records track 2,643 regulated facilities in Mercer County, New Jersey (ranking #12 of 44 jurisdictions in NJ). Of those, 62 (2.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 167 (6.3%) have active non-compliance quarters.
Which ZIP codes and cities in Mercer County have the highest regulated facility density?
Within Mercer County, the highest concentrations of EPA-tracked facilities are located in ZIP 08638 (Ewing Twp, 255 sites), ZIP 08619 (Trenton, 216 sites), ZIP 08648 (Lawrenceville, 214 sites), spanning municipal corridors including Trenton (725 sites), Princeton (315 sites), Hamilton Twp (217 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Mercer County?
Across Mercer County, 1,638 facilities (62.0% 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 Mercer County, NJ?
Geologic indoor air screening places Mercer 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 Mercer County, NJ?
Federal records track 130 Safe Drinking Water (SDWIS) facilities, 816 Clean Water Act NPDES permits, and 697 impaired water dischargers in Mercer County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Mercer County, NJ have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Mercer County indicates a MODERATE 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.