Gilliam County, Oregon — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Gilliam County, OR?
In Gilliam County, Oregon, public U.S. EPA records track 47 regulated facilities (#53 of 66 in Oregon), including 3 (6.4%) High-Risk sites and $64,211 in federal penalties. Countywide due diligence also covers 5 Safe Drinking Water (SDWIS) facilities, 21 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Gilliam 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📊 Gilliam County, OR Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Gilliam County
ZIP Codes in Gilliam County
Top EPA Regulated Facilities in Gilliam 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 • ARLINGTON, OR (ZIP 97812 Sector) | HIGH (77/100) | Violation Identified (8 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, OR (ZIP 97812 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, OR (ZIP 97812 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • CONDON, OR (ZIP 97823 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, OR (ZIP 97812 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • CONDON, OR (ZIP 97823 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, OR (ZIP 97812 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ONTARIO, OR (ZIP 97914 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| LEANING JUNIPER WIND POWER FACILITY FREE PREVIEW (LOW RISK) | 72766 RATTLESNAKE RD, ARLINGTON, OR 97812 | LOW (18/100) | Unknown (0 qtrs NC) | $0 |
| RIVERSIDE TRANSPORT SERVICE FREE PREVIEW (LOW RISK) | 1395 W 2ND ST, ARLINGTON, OR 97812 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| CONDON GRAIN GROWERS FREE PREVIEW (LOW RISK) | 806 W COTTONWOOD, CONDON, OR 97823 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| PALOUSE RIVER & COULEE CITY RAILROAD - CONDON FREE PREVIEW (LOW RISK) | 1620 RAILROAD AVENUE, ARLINGTON, OR 97812 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Gilliam County, Oregon Environmental Due Diligence
How many EPA-regulated environmental sites are in Gilliam County, Oregon?
Public U.S. EPA records track 47 regulated facilities in Gilliam County, Oregon (ranking #53 of 66 jurisdictions in OR). Of those, 3 (6.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (4.3%) have active non-compliance quarters.
Which ZIP codes and cities in Gilliam County have the highest regulated facility density?
Within Gilliam County, the highest concentrations of EPA-tracked facilities are located in ZIP 97812 (Arlington, 38 sites), ZIP 97823 (Condon, 16 sites), ZIP 97050 (Rufus, 4 sites), spanning municipal corridors including Arlington (37 sites), Condon (16 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Gilliam County?
Across Gilliam County, 31 facilities (66.0% 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 Gilliam County, OR?
Geologic indoor air screening places Gilliam 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 Gilliam County, OR?
Federal records track 5 Safe Drinking Water (SDWIS) facilities, 21 Clean Water Act NPDES permits, and 5 impaired water dischargers in Gilliam County, alongside 2 historical FEMA federal disaster declarations (0 flood/storm events).
Does Gilliam County, OR have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Gilliam County indicates a LOW 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.