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 324 regulated facilities (#15 of 66 in Oregon), including 11 (3.4%) High-Risk sites and $14,437 in federal penalties. Countywide due diligence also covers 64 Safe Drinking Water (SDWIS) facilities, 139 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 05, 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 • CORVALLIS, OR (ZIP 97330 Sector) | HIGH (66/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • PHILOMATH, OR (ZIP 97370 Sector) | HIGH (65/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CORVALLIS, OR (ZIP 97330 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MONROE, OR (ZIP 97456 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PHILOMATH, OR (ZIP 97370 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PHILOMATH, OR (ZIP 97370 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CORVALLIS, OR (ZIP 97330 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • PHILOMATH, OR (ZIP 97370 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| CITY OF ADAIR VILLAGE FREE PREVIEW (LOW RISK) | 5011 US-20 NE, ALBANY, OR 97321 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| J & S WOODWORKING FREE PREVIEW (LOW RISK) | 5260 NW HWY 99W, CORVALLIS, OR 97330 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| OSBORN AQUATIC CENTER FREE PREVIEW (LOW RISK) | 1940 NW HIGHLAND DRIVE, CORVALLIS, OR 97330 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| JACK SCOVILLE LTD FREE PREVIEW (LOW RISK) | 900 NW 4TH ST, CORVALLIS, OR 97330 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Benton County, Oregon Environmental Due Diligence
How many EPA-regulated environmental sites are in Benton County, Oregon?
Public U.S. EPA records track 324 regulated facilities in Benton County, Oregon (ranking #15 of 66 jurisdictions in OR). Of those, 11 (3.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 16 (4.9%) have active non-compliance quarters.
Which ZIP codes and cities in Benton County have the highest regulated facility density?
Within Benton County, the highest concentrations of EPA-tracked facilities are located in ZIP 97330 (Corvallis, 126 sites), ZIP 97333 (Corvallis, 110 sites), ZIP 97456 (Monroe, 23 sites), spanning municipal corridors including Corvallis (234 sites), Monroe (22 sites), Blodgett (2 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Benton County?
Across Benton County, 184 facilities (56.8% 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, OR?
Geologic indoor air screening places Benton 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, OR?
Federal records track 64 Safe Drinking Water (SDWIS) facilities, 139 Clean Water Act NPDES permits, and 105 impaired water dischargers in Benton 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.