Potomac, Maryland — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Potomac, MD?
Public U.S. EPA records track 67 regulated facilities in Potomac, Maryland (Montgomery County), including 2 High-Risk sites (3.0%) and 4 active violators. In addition to industrial waste, Potomac properties are screened for Tap Water & Watershed Permits (22 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 1 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Potomac, MD 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Potomac, MD Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)ZIP Codes in Potomac, MD
Highest-Scored EPA Regulated Facilities in Potomac, 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20854 Sector) | HIGH (79/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20854 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20859 Sector) | MODERATE (32/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20854 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20854 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20859 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20854 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • POTOMAC, MD (ZIP 20854 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| WSSC - POTOMAC WFP FREE PREVIEW (LOW RISK) | 12200 RIVER ROAD, POTOMAC, MD 20854 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| ROCKVILLE WATER FILTRATION PLANT FREE PREVIEW (LOW RISK) | 10930 SANDY LANDING ROAD, POTOMAC, MD 20854 | LOW (23/100) | No Violation Identified (0 qtrs NC) | $0 |
| HERBERT HOOVER MIDDLE SCHOOL FREE PREVIEW (LOW RISK) | 8810 POST OAK RD, POTOMAC, MD 20854 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| BULLIS SCHOOL FREE PREVIEW (LOW RISK) | 10601 FALLS ROAD, POTOMAC, MD 20854 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Potomac, Maryland Environmental Risk & Radon
How many EPA-regulated facilities are in Potomac, MD?
U.S. EPA records track 67 regulated facilities in Potomac, Maryland, including 2 high-risk sites (3.0%), 4 active violators (6.0%), and 31 RCRA hazardous waste handlers (46.3%).
Which ZIP codes in Potomac, MD have the most EPA-tracked sites?
Within Potomac, regulated facilities are primarily concentrated across ZIP 20854 (92 sites), ZIP 20859 (3 sites), ZIP 20654 (1 sites).
How can I check a specific house or commercial property in Potomac, MD?
Enter the exact street address in Potomac into the FullPropertyReport radius scanner to screen all EPA ECHO, FRS, RCRA, TRI, USDA soil foundation shrink-swell, drinking water (SDWIS), FEMA flood zone, and county radon records within 0.5 to 3.0 miles.
Is tap water safe in Potomac, MD and how many EPA water permits exist?
In Potomac, MD, federal registries track 10 Safe Drinking Water (SDWIS) facilities, 12 Clean Water Act NPDES permits, and 10 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Potomac, MD?
USDA regional soil screening for Potomac indicates a MODERATE shrink-swell foundation signal, and Montgomery County has recorded 1 federal FEMA disaster declarations (0 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.