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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Home › States › Montana › Corvallis, MT
6-IN-1 MUNICIPAL ENVIRONMENTAL, WATER, SOIL & FLOOD HUB • CORVALLIS, MT

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

Run 1-Mile Address Scan in Corvallis →

Public U.S. EPA records track 52 regulated facilities in Corvallis, Montana (Ravalli County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Corvallis properties are screened for Tap Water & Watershed Permits (45 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 1 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites
52
High-Risk (0.0% vs 0.7% State)
0
Active Violators (0.0%)
0
Drinking & Clean Water
45
Federal Penalties
$0

Corvallis, 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
Ravalli County: 1 FEMA Declarations (0 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
18 SDWIS Systems • 27 NPDES Permits
🔒 6 Impaired Water (303d) & 5 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Corvallis, 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 7 (13.5%)
Clean Water (NPDES) & Drinking Water (SDWIS) 45 (86.5%)
Active EPA Non-Compliance Dockets 0 (0.0%)
High-Risk Enforcement Facilities 0 (0.0%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Low (78.5/100)
🌊 Flood Exposure 5/10 • Relatively Low
🔥 Wildfire Hazard 10/10 • Relatively High
☀️ Extreme Heat 5/10 • Relatively Low
🌪️ Severe Wind / Storm 1/10 • Very Low
🫨 USGS Earthquake 7/10 • Relatively Low
3. City vs. County & State Benchmark
Corvallis High-Risk Rate 0.0%
Ravalli County Average 0.6%
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.
🔒 Scan a Property Address in Corvallis →

ZIP Codes in Corvallis, MT

ZIP 59828 (53 sites • 0 High Risk)

Highest-Scored EPA Regulated Facilities in Corvallis, 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 Corvallis Dossier →
Facility Name / Hazard Type Sector Location (Street Redacted) Risk Tier & Score Compliance Status Enforcement / Unlock
🔒 Locked Regulated EPA Enforcement Record #1 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) MODERATE (33/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (6 qtrs NC) 🔒 6 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (4 qtrs NC) 🔒 4 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (1 qtrs NC) 🔒 1 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
P1-RDOF RYE TO SULA, P2-NTIA RYE TO SULA FREE PREVIEW (LOW RISK) EASTSIDE HIGHWAY, CORVALLIS, MT 59828 LOW (19/100) No Violation Identified (0 qtrs NC) $0
DOUBLE FORK LLC - TUCKER HEADGATE 318 PERMIT FREE PREVIEW (LOW RISK) TUCKER HEADGATE, CORVALLIS, MT 59828 LOW (19/100) No Violation Identified (0 qtrs NC) $0
K AND L DEVELOPMENT LLC AP LOTS 14 AND 15 BLOCK 4 SUNNYSIDE ORCHARDS FREE PREVIEW (LOW RISK) 1064 WEEPING WILLOW WAY, CORVALLIS, MT 59828 LOW (19/100) No Violation Identified (0 qtrs NC) $0
ADVANCED EARTHWORKS INC BITTERROOT RIVER 318 PERMIT FREE PREVIEW (LOW RISK) BITTERROOT NEAR CORVALLIS, CORVALLIS, MT 59828 LOW (18/100) No Violation Identified (0 qtrs NC) $0
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) LOW (17/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • CORVALLIS, MT (ZIP 59828 Sector) LOW (17/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 + 40 Additional Regulated & Enforcement Records in Corvallis, MT Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Corvallis, Montana Environmental Risk & Radon

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

U.S. EPA records track 52 regulated facilities in Corvallis, Montana, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 7 RCRA hazardous waste handlers (13.5%).

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

Within Corvallis, regulated facilities are primarily concentrated across ZIP 59828 (53 sites).

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

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

In Corvallis, MT, federal registries track 18 Safe Drinking Water (SDWIS) facilities, 27 Clean Water Act NPDES permits, and 6 impaired water body dischargers.

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

USDA regional soil screening for Corvallis indicates a LOW shrink-swell foundation signal, and Ravalli 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.