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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • MAHOPAC, NY

Mahopac, New York — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Mahopac, NY?

Public U.S. EPA records track 143 regulated facilities in Mahopac, New York (Putnam County), including 1 High-Risk sites (0.7%) and 7 active violators. In addition to industrial waste, Mahopac properties are screened for Tap Water & Watershed Permits (70 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 4 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites
143
High-Risk (0.7% vs 1.1% State)
1
Active Violators (4.9%)
7
Drinking & Clean Water
70
Federal Penalties
$0

Mahopac, NY 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
Putnam County: 4 FEMA Declarations (4 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: LOW • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
33 SDWIS Systems • 37 NPDES Permits
🔒 3 Impaired Water (303d) & 11 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Mahopac, NY 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 62 (43.4%)
Clean Water (NPDES) & Drinking Water (SDWIS) 70 (49.0%)
Active EPA Non-Compliance Dockets 7 (4.9%)
High-Risk Enforcement Facilities 1 (0.7%)
2. FEMA NRI & USGS Hazard Index (1–10) Very Low (39.8/100)
🌊 Flood Exposure 3/10 • Low Hazard
🔥 Wildfire Hazard 1/10 • Very Low Hazard
☀️ Extreme Heat 3/10 • Low Hazard
🌪️ Severe Wind / Storm 3/10 • Low Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. City vs. County & State Benchmark
Mahopac High-Risk Rate 0.7%
Putnam County Average 1.8%
New York (NY) Statewide Avg 1.1%
Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.
🔒 Scan a Property Address in Mahopac →

ZIP Codes in Mahopac, NY

ZIP 10541 (152 sites • 1 High Risk) ZIP 10542 (4 sites • 0 High Risk)

Highest-Scored EPA Regulated Facilities in Mahopac, NY

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 • MAHOPAC, NY (ZIP 10541 Sector) HIGH (64/100) Significant Violation (2 qtrs NC) 🔒 2 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (42/100) Violation Identified (10 qtrs NC) 🔒 10 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (41/100) Violation Identified (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (37/100) Violation Identified (4 qtrs NC) 🔒 4 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (36/100) Violation Identified (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (35/100) Violation Identified (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (33/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • MAHOPAC, NY (ZIP 10541 Sector) MODERATE (32/100) Violation Identified (5 qtrs NC) 🔒 5 Qtrs Non-Compliance • Unlock →
WILLOW WOOD COUNTRY CLUB, INC. FREE PREVIEW (LOW RISK) 551 UNION VALLEY RD, MAHOPAC, NY 10541 LOW (18/100) No Violation Identified (0 qtrs NC) $0
MAHOPAC CSD WWTP FREE PREVIEW (LOW RISK) 421 BALDWIN PLACE ROAD, MAHOPAC, NY 10541 LOW (18/100) No Violation Identified (0 qtrs NC) $0
TAMARACK & VINE SUBDIVISION FREE PREVIEW (LOW RISK) TAMARACK ROAD & VINE ROAD, MAHOPAC, NY 10541 LOW (18/100) No Violation Identified (0 qtrs NC) $0
ADVANCE AUTO PARTS #8800 FREE PREVIEW (LOW RISK) 155 RTE 6, MAHOPAC, NY 10541 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 131 Additional Regulated & Enforcement Records in Mahopac, NY Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Mahopac, New York Environmental Risk & Radon

How many EPA-regulated facilities are in Mahopac, NY?

U.S. EPA records track 143 regulated facilities in Mahopac, New York, including 1 high-risk sites (0.7%), 7 active violators (4.9%), and 62 RCRA hazardous waste handlers (43.4%).

Which ZIP codes in Mahopac, NY have the most EPA-tracked sites?

Within Mahopac, regulated facilities are primarily concentrated across ZIP 10541 (152 sites), ZIP 10542 (4 sites).

How can I check a specific house or commercial property in Mahopac, NY?

Enter the exact street address in Mahopac 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 Mahopac, NY and how many EPA water permits exist?

In Mahopac, NY, federal registries track 33 Safe Drinking Water (SDWIS) facilities, 37 Clean Water Act NPDES permits, and 3 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Mahopac, NY?

USDA regional soil screening for Mahopac indicates a LOW shrink-swell foundation signal, and Putnam County has recorded 4 federal FEMA disaster declarations (4 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.

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