Maryland (MD) — Flood Zone, Tap Water Quality, Soil Foundation, Radon & EPA Hazards
According to public U.S. EPA, USDA, and FEMA registries (current as of November 01, 2026), Maryland tracks 38,693 EPA-regulated facilities, including 709 High-Risk sites (1.8%), 1,110 active violators, and $120,828,690 in federal penalties. Statewide environmental due diligence also covers 7,379 Safe Drinking Water (SDWIS) facilities, 8,405 Clean Water NPDES permits, 2 historical FEMA disaster declarations, USDA Soil Shrink-Swell (MODERATE regional signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Maryland (MD) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Screening Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Maryland (MD) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Major Municipal Environmental Directories in Maryland
Counties in Maryland (106)
Highest-Density ZIP Codes in Maryland
| ZIP Code | City | Total Sites | High Risk |
|---|---|---|---|
| 21226 | Baltimore | 356 | 29 |
| 21230 | Baltimore | 539 | 16 |
| 20794 | Jessup | 227 | 11 |
| 21740 | Hagerstown | 574 | 10 |
| 21801 | Salisbury | 383 | 10 |
| 21220 | Middle River | 225 | 10 |
| 21401 | Annapolis | 482 | 9 |
| 21921 | Elkton | 357 | 9 |
| 20707 | Laurel | 244 | 9 |
| 21601 | Easton | 255 | 8 |
| 21030 | Cockeysville | 249 | 8 |
| 21224 | Baltimore | 555 | 7 |
| 21157 | Westminster | 331 | 7 |
| 21222 | Baltimore | 306 | 7 |
| 21613 | Cambridge | 206 | 7 |
| 21223 | Baltimore | 192 | 7 |
| 21001 | Aberdeen | 175 | 7 |
| 20850 | Rockville | 512 | 6 |
| 21502 | Cumberland | 325 | 6 |
| 20785 | Landover | 234 | 6 |
| 21620 | Chestertown | 157 | 6 |
| 21703 | Frederick | 145 | 6 |
| 21205 | Baltimore | 118 | 6 |
| 21788 | Thurmont | 99 | 6 |
| 20659 | Mechanicsville | 83 | 6 |
| 20657 | Lusby | 59 | 6 |
| 20879 | Gaithersburg | 242 | 5 |
| 20772 | Upper Marlboro | 231 | 5 |
| 20781 | Hyattsville | 204 | 5 |
| 20678 | Prince Frederick | 183 | 5 |
| 20646 | La Plata | 168 | 5 |
| 21037 | Edgewater | 148 | 5 |
| 21015 | Bel Air | 122 | 5 |
| 21085 | Joppa | 112 | 5 |
| 20602 | Waldorf | 95 | 5 |
| 21074 | Hampstead | 92 | 5 |
| 21903 | Perryville | 87 | 5 |
| 21871 | Westover | 56 | 5 |
| 18041 | East Greenville | 47 | 5 |
| 21634 | Fishing Creek | 26 | 5 |
| 21701 | Frederick | 422 | 4 |
| 21215 | Baltimore | 341 | 4 |
| 21061 | Glen Burnie | 340 | 4 |
| 21122 | Pasadena | 237 | 4 |
| 21804 | Salisbury | 186 | 4 |
| 21632 | Federalsburg | 138 | 4 |
| 21742 | Hagerstown | 126 | 4 |
| 21771 | Mount Airy | 118 | 4 |
| 21219 | Sparrows Point | 118 | 4 |
| 20650 | Leonardtown | 98 | 4 |
| 20744 | Fort Washington | 95 | 4 |
| 21536 | Grantsville | 77 | 4 |
| 20711 | Lothian | 61 | 4 |
| 21017 | Belcamp | 54 | 4 |
| 20754 | Dunkirk | 51 | 4 |
| 21152 | Sparks | 50 | 4 |
| 21660 | Ridgley | 36 | 4 |
| 20705 | Beltsville | 320 | 3 |
| 20852 | Rockville | 312 | 3 |
| 20877 | Gaithersburg | 232 | 3 |
Highest-Scored EPA Enforcement & Contamination Facilities in Maryland
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 • SALISBURY, MD (ZIP 21804 Sector) | HIGH (98/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • HAGERSTOWN, MD (ZIP 21742 Sector) | HIGH (94/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • LOTHIAN, MD (ZIP 20711 Sector) | HIGH (93/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • HIGHLANDTOWN, MD (ZIP 21224 Sector) | HIGH (92/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LINKWOOD, MD (ZIP 21835 Sector) | HIGH (89/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ELKRIDGE, MD (ZIP 21075 Sector) | HIGH (88/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • BALTIMORE, MD (ZIP 21226 Sector) | HIGH (86/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • POINT OF ROCKS, MD (ZIP 21777 Sector) | HIGH (84/100) | Significant Violation (10 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| RENTAL TOOLS & EQUIPMENT CO INC FREE PREVIEW (LOW RISK) | 9710 CAPITOL VIEW AV, SILVER SPRING, MD 20910 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| SHASTA BEVERAGES, INC. FREE PREVIEW (LOW RISK) | 6750 MORAVIA PARK DRIVE, BALTIMORE, MD 21237 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| ARUNDEL MIDDLE SCHOOL FREE PREVIEW (LOW RISK) | 1179 HAMMOND LANE, ODENTON, MD 21113 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| BOHAGER GOODHUES INC FREE PREVIEW (LOW RISK) | 4315 EASTERN AVE, BALTIMORE, MD 21224 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Maryland (MD) Environmental Due Diligence & EPA Dataset
How many EPA-regulated environmental sites and high-risk facilities are in Maryland?
Public U.S. EPA records track 38,693 regulated facilities across Maryland. Of those, 709 (1.8%) are classified in the High-Risk tier due to formal enforcement actions, penalties, or toxic chemical releases, and 1,110 (2.9%) have active non-compliance quarters.
Which counties and ZIP codes in Maryland have the highest concentration of EPA-regulated sites?
In Maryland, the highest regulated facility volumes are concentrated in Baltimore County (5,749 sites), Montgomery County (3,733 sites), Anne Arundel County (3,146 sites), Prince Georges County (2,431 sites), with key high-risk postal sectors including ZIP 21226 (Baltimore, 29 high-risk), ZIP 21230 (Baltimore, 16 high-risk), ZIP 20794 (Jessup, 11 high-risk), ZIP 21740 (Hagerstown, 10 high-risk).
How many drinking water systems (SDWIS), Clean Water permits, and FEMA disaster declarations are recorded in Maryland?
Statewide in Maryland, federal registries track 7,379 Safe Drinking Water (SDWIS) facilities, 8,405 Clean Water Act NPDES permits, and 6,296 impaired water body (303d) dischargers, alongside 2 historical FEMA disaster declarations.
What is the EPA Radon Zone and USDA Soil Foundation Risk for properties in Maryland?
Regional geologic screening places Maryland in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L) with USDA regional soil shrink-swell rated MODERATE. Run a street address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.