Westchester County, New York — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Westchester County, New York, public U.S. EPA records track 8,407 regulated facilities (#5 of 99 in New York), including 79 (0.9%) High-Risk sites and $19,206,462 in federal penalties. Countywide due diligence also covers 296 Safe Drinking Water (SDWIS) facilities, 552 Clean Water NPDES permits, 4 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Westchester County, NY 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Westchester County, NY Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Westchester County
ZIP Codes in Westchester County
Top EPA Regulated Facilities in Westchester County, NY
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 • YONKERS, NY (ZIP 10710 Sector) | HIGH (77/100) | Significant Violation (8 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WHITE PLAINS, NY (ZIP 10601 Sector) | HIGH (75/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • YONKERS, NY (ZIP 10703 Sector) | HIGH (75/100) | Violation Identified (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NEW ROCHELLE, NY (ZIP 10805 Sector) | HIGH (73/100) | Significant Violation (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • VALHALLA, NY (ZIP 10595 Sector) | HIGH (71/100) | Violation Identified (11 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MT VERNON, NY (ZIP 10550 Sector) | HIGH (70/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MONTROSE, NY (ZIP 10548 Sector) | HIGH (70/100) | Violation Identified (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • CROTON-ON-HUDSON, NY (ZIP 10520 Sector) | HIGH (67/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| CON EDISON FREE PREVIEW (LOW RISK) | 1467 ELM ST, PEEKSKILL, NY 10566 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Westchester County, New York Environmental Due Diligence
How many EPA-regulated environmental sites are in Westchester County, New York?
Public U.S. EPA records track 8,407 regulated facilities in Westchester County, New York (ranking #5 of 99 jurisdictions in NY). Of those, 79 (0.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 143 (1.7%) have active non-compliance quarters.
Which ZIP codes and cities in Westchester County have the highest regulated facility density?
Within Westchester County, the highest concentrations of EPA-tracked facilities are located in ZIP 10701 (Yonkers, 617 sites), ZIP 10550 (Mount Vernon, 412 sites), ZIP 10801 (New Rochelle, 348 sites), spanning municipal corridors including Yonkers (1,559 sites), White Plains (832 sites), Mount Vernon (573 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Westchester County?
Across Westchester County, 7,146 facilities (85.0% 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 Westchester County, NY?
Geologic indoor air screening places Westchester County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Westchester County, NY?
Federal records track 296 Safe Drinking Water (SDWIS) facilities, 552 Clean Water Act NPDES permits, and 283 impaired water dischargers in Westchester County, alongside 4 historical FEMA federal disaster declarations (4 flood/storm events).
Does Westchester County, NY have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Westchester 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.