Walla Walla County, Washington — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Walla Walla County, WA?
In Walla Walla County, Washington, public U.S. EPA records track 117 regulated facilities (#42 of 75 in Washington), including 10 (8.5%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 117 Clean Water NPDES permits, 46 FEMA Federal Disaster Declarations (7 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Walla Walla County, WA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Walla Walla County, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Walla Walla County
ZIP Codes in Walla Walla County
Top EPA Regulated Facilities in Walla Walla County, WA
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 • WAITSBURG, WA (ZIP 99361 Sector) | HIGH (69/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • TOUCHET, WA (ZIP 99360 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (64/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • COLLEGE PLACE, WA (ZIP 99324 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • WALLULA, WA (ZIP 99363 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| DOC BAR PLACE FREE PREVIEW (LOW RISK) | 1660 STURM AVE, WALLA WALLA, WA 99362 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| US12, NINE MILE HILL TO FRENCHTOWN VIC FREE PREVIEW (LOW RISK) | UNSPECIFIED, TOUCHET, WA 99360 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| AVERY ESTATES FREE PREVIEW (LOW RISK) | 239 AVERY STREET, WALLA WALLA, WA 99362 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| HERBERT ESTATES FREE PREVIEW (LOW RISK) | 412 RESER RD, WALLA WALLA, WA 99362 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Walla Walla County, Washington Environmental Due Diligence
How many EPA-regulated environmental sites are in Walla Walla County County, Washington?
Public U.S. EPA records track 117 regulated facilities in Walla Walla County County, Washington (ranking #42 of 75 jurisdictions in WA). Of those, 10 (8.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 34 (29.1%) have active non-compliance quarters.
Which ZIP codes and cities in Walla Walla County County have the highest regulated facility density?
Within Walla Walla County County, the highest concentrations of EPA-tracked facilities are located in ZIP 99323 (Burbank, 26 sites), ZIP 99360 (Lowden, 15 sites), spanning municipal corridors including Burbank (25 sites), Lowden (4 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Walla Walla County County?
Across Walla Walla County County, 0 facilities (0.0% 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 Walla Walla County County, WA?
Geologic indoor air screening places Walla Walla 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 Walla Walla County County, WA?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 117 Clean Water Act NPDES permits, and 16 impaired water dischargers in Walla Walla County County, alongside 46 historical FEMA federal disaster declarations (7 flood/storm events).
Does Walla Walla County, WA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Walla Walla 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.