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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • LEONARDTOWN, MD

Leonardtown, Maryland — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Leonardtown, MD?

Public U.S. EPA records track 81 regulated facilities in Leonardtown, Maryland (St Mary'S County), including 5 High-Risk sites (6.2%) and 10 active violators. In addition to industrial waste, Leonardtown properties are screened for Tap Water & Watershed Permits (39 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 2 County FEMA Disaster Declarations, and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).

Total EPA Sites
81
High-Risk (6.2% vs 1.8% State)
5
Active Violators (12.3%)
10
Drinking & Clean Water
39
Federal Penalties
$0

Leonardtown, MD 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals

🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan
🌊 Flood Zone & FEMA Disaster History
St Mary'S County: 2 FEMA Declarations (1 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Status Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: MODERATE • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
7 SDWIS Systems • 32 NPDES Permits
🔒 4 Impaired Water (303d) & 10 Violation Dockets Locked
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☢️ EPA Radon & Karst Sinkhole
EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L)
Elevated Carbonate / Karst Sinkhole Belt — Monitor Foundation Settlement & Surface Depressions
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Leonardtown, MD Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 31 (38.3%)
Clean Water (NPDES) & Drinking Water (SDWIS) 39 (48.1%)
Active EPA Non-Compliance Dockets 10 (12.3%)
High-Risk Enforcement Facilities 5 (6.2%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Low (58.5/100)
🌊 Flood Exposure 5/10 • Moderate Hazard
🔥 Wildfire Hazard 1/10 • Very Low Hazard
☀️ Extreme Heat 3/10 • Low Hazard
🌪️ Severe Wind / Storm 5/10 • Moderate Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. City vs. County & State Benchmark
Leonardtown High-Risk Rate 6.2%
St Mary'S County Average 1.0%
Maryland (MD) Statewide Avg 1.8%
Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.
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ZIP Codes in Leonardtown, MD

ZIP 20650 (98 sites • 4 High Risk)

Highest-Scored EPA Regulated Facilities in Leonardtown, MD

100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).

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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 • LEONARDTOWN, MD (ZIP 20657 Sector) HIGH (64/100) Significant Violation (10 qtrs NC) 🔒 10 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) HIGH (64/100) Significant Violation (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) HIGH (64/100) Significant Violation (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) HIGH (64/100) Significant Violation (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) HIGH (64/100) Significant Violation (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) MODERATE (39/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • LEONARDTOWN, MD (ZIP 20650 Sector) MODERATE (30/100) Unknown (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
ST. MARY'S COUNTY TECHNICAL CENTER FREE PREVIEW (LOW RISK) LEONARDTOWN ROAD, LEONARDTOWN, MD 20650 LOW (19/100) No Violation Identified (0 qtrs NC) $0
OYSTER SEED NURSERIES (TOWER HILL LOCATION, WYNNE LOCATION, PENNY LOCATION) FREE PREVIEW (LOW RISK) SITE 1: 19776 TOWER HILL ROAD, LEONARDTOWN, MD 20650 LOW (18/100) No Violation Identified (0 qtrs NC) $0
MARYLAND STATE HIGHWAY ADMINISTRATION - LEONARDTOWN MAINTENANCE FACILITY FREE PREVIEW (LOW RISK) 27345 POINT LOOKOUT RD, LEONARDTOWN, MD 20650 LOW (17/100) No Violation Identified (0 qtrs NC) $0
LEONARDTOWN MIDDLE SCHOOL FREE PREVIEW (LOW RISK) 24015 POINT LOOKOUT RD, LEONARDTOWN, MD 20650 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 69 Additional Regulated & Enforcement Records in Leonardtown, MD Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Leonardtown, Maryland Environmental Risk & Radon

How many EPA-regulated facilities are in Leonardtown, MD?

U.S. EPA records track 81 regulated facilities in Leonardtown, Maryland, including 5 high-risk sites (6.2%), 10 active violators (12.3%), and 31 RCRA hazardous waste handlers (38.3%).

Which ZIP codes in Leonardtown, MD have the most EPA-tracked sites?

Within Leonardtown, regulated facilities are primarily concentrated across ZIP 20650 (98 sites).

How can I check a specific house or commercial property in Leonardtown, MD?

Enter the exact street address in Leonardtown 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 Leonardtown, MD and how many EPA water permits exist?

In Leonardtown, MD, federal registries track 7 Safe Drinking Water (SDWIS) facilities, 32 Clean Water Act NPDES permits, and 4 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Leonardtown, MD?

USDA regional soil screening for Leonardtown indicates a MODERATE shrink-swell foundation signal, and St Mary'S County has recorded 2 federal FEMA disaster declarations (1 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.

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