New Castle County, Delaware — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in New Castle County, DE?
In New Castle County, Delaware, public U.S. EPA records track 44 regulated facilities (#4 of 6 in Delaware), including 4 (9.1%) High-Risk sites and $133,580 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 6 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
New Castle County, DE 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 New Castle County, DE Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in New Castle County
ZIP Codes in New Castle County
Top EPA Regulated Facilities in New Castle County, DE
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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • WILMINGTON, DE (ZIP 19801 Sector) | MODERATE (54/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • NEWPORT, DE (ZIP 19804 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WILMINGTON, DE (ZIP 19804 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • CLAYMONT, DE (ZIP 19703 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NEWARK, DE (ZIP 19971 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • BEAR, DE (ZIP 19701 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • DELAWARE CITY, DE (ZIP 19706 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WILMINGTON, DE (ZIP 19805 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| DRPI FREE PREVIEW (LOW RISK) | 201 MARSH LANE, NEW CASTLE, DE 19720 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| NEW ADMINISTRATION BUILDING - VA MEDICAL CENTER FREE PREVIEW (LOW RISK) | 1601 KIRKWOOD HIGHWAY, WILMINGTON, DE 19805 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| APPROVED EQUIPMENT CO FREE PREVIEW (LOW RISK) | 26TH & MARKET ST, WILMINGTON, DE 19802 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NORTHWEST EXTENSION DISTRICT FREE PREVIEW (LOW RISK) | , MIDDLETOWN, DE 19709 | LOW (12/100) | Inactive (0 qtrs NC) | $0 |
Frequently Asked Questions — New Castle County, Delaware Environmental Due Diligence
How many EPA-regulated environmental sites are in New Castle County County, Delaware?
Public U.S. EPA records track 44 regulated facilities in New Castle County County, Delaware (ranking #4 of 6 jurisdictions in DE). Of those, 4 (9.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in New Castle County County have the highest regulated facility density?
Within New Castle County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including New Castle County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in New Castle County County?
Across New Castle County County, 5 facilities (11.4% 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 Castle County County, DE?
Geologic indoor air screening places New Castle County 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 New Castle County County, DE?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 6 Clean Water Act NPDES permits, and 5 impaired water dischargers in New Castle County County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does New Castle County, DE have expansive clay soil or foundation risk?
USDA regional soil engineering screening for New Castle County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.