ZIP 99362 (Walla Walla, WA) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 99362 in Walla Walla, Washington (Walla Walla County) has 266 EPA-tracked facilities, including 15 High-Risk sites (5.6%), 41 active violators, and $81,330 in federal penalties. Beyond industrial pollution, properties in ZIP 99362 are screened across 46 historical Walla Walla County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (169), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 99362 (Walla Walla, WA) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 99362 (Walla Walla, WA) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 99362 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 15 High-Risk and 41 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 99362 (Walla Walla, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (68/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 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 • WALLA WALLA, WA (ZIP 99362 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 • WALLA WALLA, WA (ZIP 99362 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 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 (11 qtrs NC) | 🔒 11 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 (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| CLIFFSTAR WALLA WALLA FREE PREVIEW (LOW RISK) | 1164 DELL AVE, WALLA WALLA, WA 99362 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CARROLL ADAMS TRACTOR CO FREE PREVIEW (LOW RISK) | 11TH & ROSE ST, WALLA WALLA, WA 99362 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| FORD OF WALLA WALLA INC FREE PREVIEW (LOW RISK) | 11 N COLVILLE, WALLA WALLA, WA 99362 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| WHITMAN COLLEGE E ISSACS FREE PREVIEW (LOW RISK) | 15 PENROSE SCIENCE BLDG, WALLA WALLA, WA 99362 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 99362 (Walla Walla, WA) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 99362 (Walla Walla, WA)?
ZIP code 99362 (Walla Walla, WA) contains 266 EPA-tracked facilities, of which 15 (5.6%) are classified in the High-Risk tier, 41 (15.4%) have active compliance violations, and 103 (38.7%) handle RCRA hazardous waste.
How does ZIP 99362 compare to Walla Walla County and Washington averages?
In ZIP 99362, 5.6% of regulated sites are rated High Risk, compared to 5.8% across Walla Walla County and 5.2% statewide in Washington.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 99362?
Geologic screening places ZIP 99362 in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 99362 (Walla Walla, WA) in a FEMA flood zone and what is the flood disaster history?
Walla Walla County has recorded 46 historical FEMA federal disaster declarations (7 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 99362 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 99362 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 99362 indicates a MODERATE shrink-swell risk signal. Within ZIP 99362, federal registries track 17 SDWIS drinking water facilities, 152 Clean Water NPDES permits, and 19 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.