Montgomery County, Maryland — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Montgomery County, MD?
In Montgomery County, Maryland, public U.S. EPA records track 39 regulated facilities (#35 of 50 in Maryland), including 2 (5.1%) High-Risk sites and $208,309 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 18 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Montgomery 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📊 Montgomery County, MD Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Montgomery County
ZIP Codes in Montgomery County
Top EPA Regulated Facilities in Montgomery 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 |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • ROCKVILLE, MD (ZIP 20850 Sector) | MODERATE (39/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • DAMASCUS, MD (ZIP 20872 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SILVER SPRING, MD (ZIP 20904 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ROCKVILLE, MD (ZIP 20850 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 • GERMANTOWN, MD (ZIP 20874 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • BETHESDA, MD (ZIP 20814 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ROCKVILLE, MD (ZIP 20852 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ROCKVILLE, MD (ZIP 20850 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| NATIONAL INSTITUTES OF HEALTH, ANIMAL CENTER FREE PREVIEW (LOW RISK) | 16701 ELMER SCHOOL ROAD, DICKERSON, MD 20842 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| MCPS FACILITIES MAINTENANCE DEPOT FREE PREVIEW (LOW RISK) | 8301 TURKEY THICKET DRIVE, BLDG A, 1ST FLOOR, GAITHERSBURG, MD 20879 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| WHITE PORTAL FREE PREVIEW (LOW RISK) | 10 TOBIN CT., BETHESDA, MD 20827 | LOW (17/100) | Unknown (0 qtrs NC) | $0 |
| MINE # 105 - WEST FREE PREVIEW (LOW RISK) | 10 TOBIN COUNT, POTOMAC, MD 24085 | LOW (17/100) | Unknown (0 qtrs NC) | $0 |
Frequently Asked Questions — Montgomery County, Maryland Environmental Due Diligence
How many EPA-regulated environmental sites are in Montgomery County County, Maryland?
Public U.S. EPA records track 39 regulated facilities in Montgomery County County, Maryland (ranking #35 of 50 jurisdictions in MD). Of those, 2 (5.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (2.6%) have active non-compliance quarters.
Which ZIP codes and cities in Montgomery County County have the highest regulated facility density?
Within Montgomery County County, the highest concentrations of EPA-tracked facilities are located in ZIP 20827 (Bethesda, 3 sites), ZIP 20209 (Silver Spring, 1 sites), spanning municipal corridors including Montgomery County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Montgomery County County?
Across Montgomery County 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 Montgomery County County, MD?
Geologic indoor air screening places Montgomery County County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Montgomery County County, MD?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 18 Clean Water Act NPDES permits, and 14 impaired water dischargers in Montgomery County County, alongside 1 historical FEMA federal disaster declarations (0 flood/storm events).
Does Montgomery County, MD have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Montgomery 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.