ZIP 59828 (Corvallis, MT) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 59828 in Corvallis, Montana (Ravalli County) has 53 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 0 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 59828 are screened across 1 historical Ravalli County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (46), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 59828 (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📊 ZIP 59828 (Corvallis, MT) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 59828 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 0 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 59828 (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).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Score (0–100) | 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 → |
Frequently Asked Questions — ZIP 59828 (Corvallis, MT) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 59828 (Corvallis, MT)?
ZIP code 59828 (Corvallis, MT) contains 53 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 0 (0.0%) have active compliance violations, and 7 (13.2%) handle RCRA hazardous waste.
How does ZIP 59828 compare to Ravalli County and Montana averages?
In ZIP 59828, 0.0% of regulated sites are rated High Risk, compared to 0.6% across Ravalli County and 0.7% statewide in Montana.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 59828?
Geologic screening places ZIP 59828 in EPA Zone 1 — High Potential (> 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 59828 (Corvallis, MT) in a FEMA flood zone and what is the flood disaster history?
Ravalli County has recorded 1 historical FEMA federal disaster declarations (0 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 59828 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 59828 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 59828 indicates a LOW shrink-swell risk signal. Within ZIP 59828, federal registries track 18 SDWIS drinking water facilities, 28 Clean Water NPDES permits, and 6 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.