ZIP 20331 (Maryland, MD) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 20331 in Maryland, Maryland (Prince Georges County) has 2 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 0 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 20331 are screened across 1 historical Prince Georges County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (0), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 20331 (Maryland, MD) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 20331 (Maryland, MD) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 20331 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 0 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 20331 (Maryland, MD)
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 |
|---|---|---|---|---|
| U.S. ARMY RESERVE FREE PREVIEW (LOW RISK) | POWERHOUSE RD. AAFB, MARYLAND, MD 20331 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| FEDERAL AVIATION ADMINISTRATION FREE PREVIEW (LOW RISK) | BUILDING 1208, MARYLAND, MD 20331 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 20331 (Maryland, MD) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 20331 (Maryland, MD)?
ZIP code 20331 (Maryland, MD) contains 2 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 0 (0.0%) have active compliance violations, and 0 (0.0%) handle RCRA hazardous waste.
How does ZIP 20331 compare to Prince Georges County and Maryland averages?
In ZIP 20331, 0.0% of regulated sites are rated High Risk, compared to 0.8% across Prince Georges County and 1.8% statewide in Maryland.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 20331?
Geologic screening places ZIP 20331 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 20331 (Maryland, MD) in a FEMA flood zone and what is the flood disaster history?
Prince Georges County has recorded 1 historical FEMA federal disaster declarations (0 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 20331 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 20331 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 20331 indicates a LOW shrink-swell risk signal. Within ZIP 20331, 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.