PUBLIC DATA SOURCE: U.S. EPA ECHO, FRS, RCRA, TRI & FEMA NFHL 3,230,651 Regulated Sites • All 50 States • Data as of November 01, 2026
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6-IN-1 MUNICIPAL ENVIRONMENTAL, WATER, SOIL & FLOOD HUB • CUSTER, MT

Custer, Montana — Flood Zone, Tap Water Quality, Soil Foundation, Radon & EPA Hazards

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Public U.S. EPA records track 19 regulated facilities in Custer, Montana (Yellowstone County), including 1 High-Risk sites (5.3%) and 4 active violators. In addition to industrial waste, Custer properties are screened for Tap Water & Watershed Permits (16 systems), USDA Soil Foundation Shrink-Swell (HIGH signal), 2 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites
19
High-Risk (5.3% vs 0.7% State)
1
Active Violators (21.1%)
4
Drinking & Clean Water
16
Federal Penalties
$0

Custer, MT 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
Yellowstone 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: HIGH • Pipe Corrosion: High
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
3 SDWIS Systems • 13 NPDES Permits
🔒 1 Impaired Water (303d) & 6 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

📊 Custer, MT Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 2 (10.5%)
Clean Water (NPDES) & Drinking Water (SDWIS) 16 (84.2%)
Active EPA Non-Compliance Dockets 4 (21.1%)
High-Risk Enforcement Facilities 1 (5.3%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Moderate (83.6/100)
🌊 Flood Exposure 5/10 • Moderate Hazard
🔥 Wildfire Hazard 5/10 • Moderate Hazard
☀️ Extreme Heat 3/10 • Low Hazard
🌪️ Severe Wind / Storm 5/10 • Moderate Hazard
🫨 USGS Earthquake 3/10 • Low Hazard
3. City vs. County & State Benchmark
Custer High-Risk Rate 5.3%
Yellowstone County Average 0.9%
Montana (MT) Statewide Avg 0.7%
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 Custer, MT

ZIP 59024 (20 sites • 1 High Risk)

Highest-Scored EPA Regulated Facilities in Custer, MT

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

Unlock Full Custer Dossier →
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 • CUSTER, MT (ZIP 59024 Sector) HIGH (64/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) MODERATE (36/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (10 qtrs NC) 🔒 10 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) MODERATE (30/100) Violation Identified (2 qtrs NC) 🔒 2 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) MODERATE (29/100) Violation Identified (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) MODERATE (20/100) Resolved / Historical Non-Compliance (1 qtrs NC) 🔒 1 Qtrs Non-Compliance • Unlock →
DELCAMP PRIVATE RESIDENCE FREE PREVIEW (LOW RISK) 607 4TH AVE, CUSTER, MT 59024 LOW (17/100) No Violation Identified (0 qtrs NC) $0
USDOE WAP CUSTER SUBSTATION FREE PREVIEW (LOW RISK) HWY 47, CUSTER, MT 59024 LOW (17/100) No Violation Identified (0 qtrs NC) $0
NORTHWESTERN ENERGY - BIGHORN RIVER TRANSMISSION TOWER STABILIZATION FREE PREVIEW (LOW RISK) 15MI S OF I-94 ON MT 47, CUSTER, MT 59024 LOW (17/100) No Violation Identified (0 qtrs NC) $0
MID RIVERS 2018 CUSTER EXCHANGE PROJECT FREE PREVIEW (LOW RISK) IN AND AROUND THE TOWN OF CUSTER, CUSTER, MT 59024 LOW (13/100) No Violation Identified (0 qtrs NC) $0
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) LOW (12/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • CUSTER, MT (ZIP 59024 Sector) LOW (12/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 + 7 Additional Regulated & Enforcement Records in Custer, MT Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Custer, Montana Environmental Risk & Radon

How many EPA-regulated facilities are in Custer, MT?

U.S. EPA records track 19 regulated facilities in Custer, Montana, including 1 high-risk sites (5.3%), 4 active violators (21.1%), and 2 RCRA hazardous waste handlers (10.5%).

Which ZIP codes in Custer, MT have the most EPA-tracked sites?

Within Custer, regulated facilities are primarily concentrated across ZIP 59024 (20 sites).

How can I check a specific house or commercial property in Custer, MT?

Enter the exact street address in Custer 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 Custer, MT and how many EPA water permits exist?

In Custer, MT, federal registries track 3 Safe Drinking Water (SDWIS) facilities, 13 Clean Water Act NPDES permits, and 1 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Custer, MT?

USDA regional soil screening for Custer indicates a HIGH shrink-swell foundation signal, and Yellowstone 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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