Lewis County, Washington — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Lewis County, Washington, public U.S. EPA records track 109 regulated facilities (#44 of 75 in Washington), including 11 (10.1%) High-Risk sites and $4,000 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 106 Clean Water NPDES permits, 7 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).
Lewis 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📊 Lewis County, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Lewis County
ZIP Codes in Lewis County
Top EPA Regulated Facilities in Lewis 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 • WINLOCK, WA (ZIP 98596 Sector) | HIGH (68/100) | Significant Violation (10 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • CHEHALIS, WA (ZIP 98532 Sector) | HIGH (65/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NAPAVINE, WA (ZIP 98532 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • CENTRALIA, WA (ZIP 98531 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • TOLEDO, WA (ZIP 98591 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 • CENTRALIA, WA (ZIP 98531 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CHEHALIS, WA (ZIP 98532 Sector) | HIGH (64/100) | Significant Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WINLOCK, WA (ZIP 98596 Sector) | HIGH (64/100) | Significant Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| ADNA WATER TREATMENT PLANT FREE PREVIEW (LOW RISK) | 1746 STATE ROUTE 6, CHEHALIS, WA 98532 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| MRIS II FREE PREVIEW (LOW RISK) | 207 MAURIN RD, CHEHALIS, WA 98532 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| SOUTH SCHEUBER SITE DEVELOPMENT FREE PREVIEW (LOW RISK) | 909 SOUTH SCHEUBER ROAD, CENTRALIA, WA 98531 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| WILLAPA HILLS TRAIL STATE PARK FREE PREVIEW (LOW RISK) | UNSPECIFIED, CHEHALIS, WA 98532 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Lewis County, Washington Environmental Due Diligence
How many EPA-regulated environmental sites are in Lewis County County, Washington?
Public U.S. EPA records track 109 regulated facilities in Lewis County County, Washington (ranking #44 of 75 jurisdictions in WA). Of those, 11 (10.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 42 (38.5%) have active non-compliance quarters.
Which ZIP codes and cities in Lewis County County have the highest regulated facility density?
Within Lewis County County, the highest concentrations of EPA-tracked facilities are located in ZIP 98596 (Winlock, 49 sites), ZIP 98377 (Randle, 24 sites), ZIP 98355 (Gig Harbor, 3 sites), spanning municipal corridors including Winlock (48 sites), Randle (21 sites), Cowlitz, Lewis, Skamania Cos. (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Lewis County County?
Across Lewis County County, 1 facilities (0.9% 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 Lewis County County, WA?
Geologic indoor air screening places Lewis 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 Lewis County County, WA?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 106 Clean Water Act NPDES permits, and 25 impaired water dischargers in Lewis County County, alongside 7 historical FEMA federal disaster declarations (7 flood/storm events).
Does Lewis County, WA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Lewis 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.