ZIP 19721 (New Castle, DE) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 19721 in New Castle, Delaware (New Castle County) has 2 EPA-tracked facilities, including 1 High-Risk sites (50.0%), 0 active violators, and $10,000 in federal penalties. Beyond industrial pollution, properties in ZIP 19721 are screened across 1 historical New Castle County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (0), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 19721 (New Castle, DE) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 19721 (New Castle, DE) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 19721 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 0 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 19721 (New Castle, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • NEW CASTLE, DE (ZIP 19721 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (7 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| INVISTA APPLIED RESEARCH CENTRE FREE PREVIEW (LOW RISK) | 150 RED MILL ROAD, NEW CASTLE, DE 19721 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 19721 (New Castle, DE) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 19721 (New Castle, DE)?
ZIP code 19721 (New Castle, DE) contains 2 EPA-tracked facilities, of which 1 (50.0%) are classified in the High-Risk tier, 0 (0.0%) have active compliance violations, and 2 (100.0%) handle RCRA hazardous waste.
How does ZIP 19721 compare to New Castle County and Delaware averages?
In ZIP 19721, 50.0% of regulated sites are rated High Risk, compared to 1.9% across New Castle County and 1.7% statewide in Delaware.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 19721?
Geologic screening places ZIP 19721 in EPA Zone 2 — Moderate Potential (2.0 – 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 19721 (New Castle, DE) in a FEMA flood zone and what is the flood disaster history?
New Castle County has recorded 1 historical FEMA federal disaster declarations (1 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 19721 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 19721 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 19721 indicates a MODERATE shrink-swell risk signal. Within ZIP 19721, federal registries track 0 SDWIS drinking water facilities, 0 Clean Water NPDES permits, and 0 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.