Undetermined County, Delaware — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Undetermined County, DE?
In Undetermined County, Delaware, public U.S. EPA records track 1 regulated facilities (#11 of 11 in Delaware), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water NPDES permits, 2 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).
Undetermined 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📊 Undetermined County, DE Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Undetermined County
ZIP Codes in Undetermined County
Top EPA Regulated Facilities in Undetermined 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 |
|---|---|---|---|---|
| DELAWARE RIVER & BAY AUTHORITY FREE PREVIEW (LOW RISK) | DELAWARE RIVER MEMORIAL BRG PLZ, OUT OF STATE, DE 19720 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Undetermined County, Delaware Environmental Due Diligence
How many EPA-regulated environmental sites are in Undetermined County, Delaware?
Public U.S. EPA records track 1 regulated facilities in Undetermined County, Delaware (ranking #11 of 11 jurisdictions in DE). Of those, 0 (0.0%) 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 Undetermined County have the highest regulated facility density?
Within Undetermined County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Out Of State (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Undetermined County?
Across Undetermined County, 0 facilities (0.0% 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 Undetermined County, DE?
Geologic indoor air screening places Undetermined 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 Undetermined County, DE?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water Act NPDES permits, and 0 impaired water dischargers in Undetermined County, alongside 2 historical FEMA federal disaster declarations (1 flood/storm events).
Does Undetermined County, DE have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Undetermined County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.