ZIP 98502 (Olympia, WA) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 98502 in Olympia, Washington (Thurston County) has 173 EPA-tracked facilities, including 4 High-Risk sites (2.3%), 17 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 98502 are screened across 3 historical Thurston County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (93), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 98502 (Olympia, 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 98502 (Olympia, WA) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 98502 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 4 High-Risk and 17 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 98502 (Olympia, 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 • OLYMPIA, WA (ZIP 98502 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • TUMWATER, WA (ZIP 98502 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98502 Sector) | HIGH (64/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98502 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 • OLYMPIA, WA (ZIP 98502 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98502 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98502 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98502 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| RITCHIE BROTHERS AUCTIONEERS FREE PREVIEW (LOW RISK) | 3321 MAYTOWN RD SW, OLYMPIA, WA 98502 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| TARGET STORE 0607 FREE PREVIEW (LOW RISK) | 2925 HARRISON AVE NW, OLYMPIA, WA 98502 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| FIRESTONE TIRE SVC CTR FREE PREVIEW (LOW RISK) | 2800 HARRISON AVE W, OLYMPIA, WA 98502 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| TOP AUTO INC OLYMPIA FREE PREVIEW (LOW RISK) | WESTSIDE CTR STE D, OLYMPIA, WA 98502 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 98502 (Olympia, 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 98502 (Olympia, WA)?
ZIP code 98502 (Olympia, WA) contains 173 EPA-tracked facilities, of which 4 (2.3%) are classified in the High-Risk tier, 17 (9.8%) have active compliance violations, and 79 (45.7%) handle RCRA hazardous waste.
How does ZIP 98502 compare to Thurston County and Washington averages?
In ZIP 98502, 2.3% of regulated sites are rated High Risk, compared to 4.9% across Thurston County and 5.2% statewide in Washington.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 98502?
Geologic screening places ZIP 98502 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 98502 (Olympia, WA) in a FEMA flood zone and what is the flood disaster history?
Thurston County has recorded 3 historical FEMA federal disaster declarations (3 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 98502 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 98502 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 98502 indicates a MODERATE shrink-swell risk signal. Within ZIP 98502, federal registries track 28 SDWIS drinking water facilities, 65 Clean Water NPDES permits, and 26 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.