Benton County, Oregon — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Benton County, OR?
In Benton County, Oregon, public U.S. EPA records track 56 regulated facilities (#45 of 66 in Oregon), including 3 (5.4%) High-Risk sites and $10,870 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 54 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Benton County, OR 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Benton County, OR Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Benton County
ZIP Codes in Benton County
Top EPA Regulated Facilities in Benton County, OR
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 Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • MONROE, OR (ZIP 97456 Sector) | HIGH (68/100) | Significant Violation (1 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • CORVALLIS, OR (ZIP 97333 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MONMOUTH, OR (ZIP 97361 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PHILOMATH, OR (ZIP 97370 Sector) | MODERATE (32/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| RUNWAY 10-28 REHABILITATION PROJECT FREE PREVIEW (LOW RISK) | 5695 SW AIRPORT AVE, CORVALLIS, OR 97333 | LOW (18/100) | Unknown (0 qtrs NC) | $0 |
| DOLLAR GENERAL - PHILOMATH FREE PREVIEW (LOW RISK) | 658 MAIN STREET, PHILOMATH, OR 97370 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| CVHS ATHLETIC IMPROVEMENTS FREE PREVIEW (LOW RISK) | 4444 NW HIGHLAND DRIVE, CORVALLIS, OR 97333 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| CALLOWAY CREEK SUBDIVISION FREE PREVIEW (LOW RISK) | RYALS & HWY 99W, ADAIR VILLAGE, OR 97330 | LOW (17/100) | Unknown (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • CORVALLIS, OR (ZIP 97330 Sector) | LOW (17/100) | Unknown (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PHILOMATH, OR (ZIP 97370 Sector) | LOW (17/100) | Unknown (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CORVALLIS, OR (ZIP 97333 Sector) | LOW (17/100) | Unknown (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • CORVALLIS, OR (ZIP 97330 Sector) | LOW (17/100) | Unknown (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Benton County, Oregon Environmental Due Diligence
How many EPA-regulated environmental sites are in Benton County County, Oregon?
Public U.S. EPA records track 56 regulated facilities in Benton County County, Oregon (ranking #45 of 66 jurisdictions in OR). Of those, 3 (5.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 3 (5.4%) have active non-compliance quarters.
Which ZIP codes and cities in Benton County County have the highest regulated facility density?
Within Benton County County, the highest concentrations of EPA-tracked facilities are located in ZIP 97324 (Alsea, 7 sites), spanning municipal corridors including Adair Village (7 sites), Alsea (7 sites), Alpine (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Benton County County?
Across Benton County County, 1 facilities (1.8% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Benton County County, OR?
Geologic indoor air screening places Benton County County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Benton County County, OR?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 54 Clean Water Act NPDES permits, and 37 impaired water dischargers in Benton County County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Benton County, OR have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Benton County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.