Thurston County, Washington — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Thurston County, WA?
In Thurston County, Washington, public U.S. EPA records track 1,297 regulated facilities (#8 of 75 in Washington), including 63 (4.9%) High-Risk sites and $7,439,550 in federal penalties. Countywide due diligence also covers 327 Safe Drinking Water (SDWIS) facilities, 616 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Thurston 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📊 Thurston County, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Thurston County
ZIP Codes in Thurston County
Top EPA Regulated Facilities in Thurston 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 • OLYMPIA, WA (ZIP 98501 Sector) | HIGH (93/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • TUMWATER, WA (ZIP 98501 Sector) | HIGH (69/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98506 Sector) | HIGH (68/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98505 Sector) | HIGH (68/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98501 Sector) | HIGH (67/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • OLYMPIA, WA (ZIP 98501 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • TUMWATER, WA (ZIP 98501 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • TUMWATER, WA (ZIP 98501 Sector) | HIGH (65/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| TARGET STORE 0607 FREE PREVIEW (LOW RISK) | 2925 HARRISON AVE NW, OLYMPIA, WA 98502 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| SHERWIN WILLIAMS CO OLYMPIA 8136 FREE PREVIEW (LOW RISK) | 3949 MARTIN WAY E, OLYMPIA, WA 98506 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| YELM COMMUNITY SCHOOLS FREE PREVIEW (LOW RISK) | 14901 YELM HWY SE, YELM, WA 98597 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| MOTTMAN RD ABANDONED DRUM FREE PREVIEW (LOW RISK) | 1800 BLK OF MOTTMAN RD IN GRAV, OLYMPIA, WA 98512 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Thurston County, Washington Environmental Due Diligence
How many EPA-regulated environmental sites are in Thurston County, Washington?
Public U.S. EPA records track 1,297 regulated facilities in Thurston County, Washington (ranking #8 of 75 jurisdictions in WA). Of those, 63 (4.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 146 (11.3%) have active non-compliance quarters.
Which ZIP codes and cities in Thurston County have the highest regulated facility density?
Within Thurston County, the highest concentrations of EPA-tracked facilities are located in ZIP 98516 (Lacey, 181 sites), ZIP 98502 (Olympia, 173 sites), ZIP 98503 (Lacey, 161 sites), spanning municipal corridors including Olympia (710 sites), Lacey (293 sites), Yelm (86 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Thurston County?
Across Thurston County, 616 facilities (47.5% 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 Thurston County, WA?
Geologic indoor air screening places Thurston 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 Thurston County, WA?
Federal records track 327 Safe Drinking Water (SDWIS) facilities, 616 Clean Water Act NPDES permits, and 193 impaired water dischargers in Thurston County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does Thurston County, WA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Thurston 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.