Multnomah County, Oregon — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Multnomah County, OR?
In Multnomah County, Oregon, public U.S. EPA records track 467 regulated facilities (#12 of 66 in Oregon), including 20 (4.3%) High-Risk sites and $291,456 in federal penalties. Countywide due diligence also covers 7 Safe Drinking Water (SDWIS) facilities, 446 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Multnomah 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📊 Multnomah County, OR Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Multnomah County
ZIP Codes in Multnomah County
Top EPA Regulated Facilities in Multnomah 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 • WOOD VILLAGE, OR (ZIP 97060 Sector) | HIGH (71/100) | Significant Violation (1 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • GRESHAM, OR (ZIP 97230 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • PORTLAND, OR (ZIP 97331 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • GRESHAM, OR (ZIP 97080 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • TROUTDALE, OR (ZIP 97060 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 • PORTLAND, OR (ZIP 97230 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 • PORTLAND, OR (ZIP 97230 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WOOD VILLAGE, OR (ZIP 97060 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| CORP 12 FREE PREVIEW (LOW RISK) | 4730 N LAGOON AVE, PORTLAND, OR 97217 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| BYBEE LAKE COMMERCE CENTER FREE PREVIEW (LOW RISK) | 14355 N BYBEE LAKE COURT, PORTLAND, OR 97203 | LOW (18/100) | Unknown (0 qtrs NC) | $0 |
| PORTLAND PORTAL INDUSTRIAL CENTER PHASE II FREE PREVIEW (LOW RISK) | 3003-3099 NE 160TH PL, PORTLAND, OR 97230 | LOW (18/100) | Unknown (0 qtrs NC) | $0 |
| PLEASANT VALLEY NEIGHBORHOOD PARK 1 FREE PREVIEW (LOW RISK) | SW 41ST ST AND SW BRIXTON, GRESHAM, OR 97030 | LOW (18/100) | Unknown (0 qtrs NC) | $0 |
Frequently Asked Questions — Multnomah County, Oregon Environmental Due Diligence
How many EPA-regulated environmental sites are in Multnomah County County, Oregon?
Public U.S. EPA records track 467 regulated facilities in Multnomah County County, Oregon (ranking #12 of 66 jurisdictions in OR). Of those, 20 (4.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 16 (3.4%) have active non-compliance quarters.
Which ZIP codes and cities in Multnomah County County have the highest regulated facility density?
Within Multnomah County County, the highest concentrations of EPA-tracked facilities are located in ZIP 97060 (Troutdale, 165 sites), ZIP 97019 (Corbett, 11 sites), spanning municipal corridors including Troutdale (136 sites), Wood Village (20 sites), Corbett (12 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Multnomah County County?
Across Multnomah County County, 8 facilities (1.7% 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 Multnomah County County, OR?
Geologic indoor air screening places Multnomah County 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 Multnomah County County, OR?
Federal records track 7 Safe Drinking Water (SDWIS) facilities, 446 Clean Water Act NPDES permits, and 392 impaired water dischargers in Multnomah County County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Multnomah County, OR have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Multnomah 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.