Columbia County, Oregon — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Columbia County, OR?
In Columbia County, Oregon, public U.S. EPA records track 283 regulated facilities (#20 of 66 in Oregon), including 21 (7.4%) High-Risk sites and $191,557 in federal penalties. Countywide due diligence also covers 68 Safe Drinking Water (SDWIS) facilities, 163 Clean Water NPDES permits, 39 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Columbia 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📊 Columbia County, OR Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Columbia County
Top EPA Regulated Facilities in Columbia 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 • CLATSKANIE, OR (ZIP 97016 Sector) | HIGH (69/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • RAINIER, OR (ZIP 97048 Sector) | HIGH (68/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • RAINIER, OR (ZIP 97048 Sector) | HIGH (67/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • CLATSKANIE, OR (ZIP 97016 Sector) | HIGH (66/100) | Violation Identified (11 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • WARREN, OR (ZIP 97053 Sector) | HIGH (66/100) | Significant Violation (1 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • DEER ISLAND, OR (ZIP 97054 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SCAPPOOSE, OR (ZIP 97056 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 • ST HELENS, OR (ZIP 97051 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| ARMSTRONG WORLD INDUSTRIES FREE PREVIEW (LOW RISK) | 1645 RAILROAD AVE, SAINT HELENS, OR 97051 | LOW (23/100) | Unknown (0 qtrs NC) | $0 |
| SCAPPOOSE AUTO PARTS INC FREE PREVIEW (LOW RISK) | 51813 COLUMBIA RIVER HWY, SCAPPOOSE, OR 97056 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CASCADIA ENVIRONMENTAL & ASSOCIATES INC FREE PREVIEW (LOW RISK) | 54012 RINGARING RD, SCAPPOOSE, OR 97056 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| RAINSHADOW LABS FREE PREVIEW (LOW RISK) | 300 PORT AVE, SAINT HELENS, OR 97051 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Columbia County, Oregon Environmental Due Diligence
How many EPA-regulated environmental sites are in Columbia County, Oregon?
Public U.S. EPA records track 283 regulated facilities in Columbia County, Oregon (ranking #20 of 66 jurisdictions in OR). Of those, 21 (7.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 47 (16.6%) have active non-compliance quarters.
Which ZIP codes and cities in Columbia County have the highest regulated facility density?
Within Columbia County, the highest concentrations of EPA-tracked facilities are located in ZIP 97056 (Scappoose, 100 sites), ZIP 97051 (St Helens, 97 sites), ZIP 97016 (Birkenfeld, 57 sites), spanning municipal corridors including Scappoose (94 sites), Clatskanie (47 sites), St Helens (39 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Columbia County?
Across Columbia County, 110 facilities (38.9% 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 Columbia County, OR?
Geologic indoor air screening places Columbia County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Columbia County, OR?
Federal records track 68 Safe Drinking Water (SDWIS) facilities, 163 Clean Water Act NPDES permits, and 133 impaired water dischargers in Columbia County, alongside 39 historical FEMA federal disaster declarations (4 flood/storm events).
Does Columbia County, OR have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Columbia County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.