District Of Columbia County, Maryland — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in District Of Columbia County, MD?
In District Of Columbia County, Maryland, public U.S. EPA records track 3 regulated facilities (#59 of 59 in Maryland), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 2 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).
District Of Columbia County, MD 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 District Of Columbia County, MD Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in District Of Columbia County
ZIP Codes in District Of Columbia County
Top EPA Regulated Facilities in District Of Columbia County, 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 Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| CHESAPEAKE PARK PLAZA BLOCKS B, G, H FREE PREVIEW (LOW RISK) | CHESAPEAKE PARK PLAZA, MIDDLE RIVER, MD 21220 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| MYRTLE AVENUE, 1202 FREE PREVIEW (LOW RISK) | 1202 MYRTLE AVENUE, MARYLAND, MD 20036 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| A.P. DAS, C/O RITA L. SMITH, INSTALLATION ENV. PRO. MGR. FREE PREVIEW (LOW RISK) | NAVFAC WASHINGTON - 9500 MACARTHUR BLVD., BLDG.32, WEST BETHESDA, MD 20718 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — District Of Columbia County, Maryland Environmental Due Diligence
How many EPA-regulated environmental sites are in District Of Columbia County, Maryland?
Public U.S. EPA records track 3 regulated facilities in District Of Columbia County, Maryland (ranking #59 of 59 jurisdictions in MD). 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 District Of Columbia County have the highest regulated facility density?
Within District Of Columbia County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including West Bethesda (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in District Of Columbia County?
Across District Of Columbia 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 District Of Columbia County, MD?
Geologic indoor air screening places District Of Columbia 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 District Of Columbia County, MD?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 2 Clean Water Act NPDES permits, and 0 impaired water dischargers in District Of Columbia County, alongside 2 historical FEMA federal disaster declarations (1 flood/storm events).
Does District Of Columbia County, MD have expansive clay soil or foundation risk?
USDA regional soil engineering screening for District Of Columbia County indicates a MODERATE 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.