Snohomish County, Washington — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Snohomish County, WA?
In Snohomish County, Washington, public U.S. EPA records track 952 regulated facilities (#11 of 75 in Washington), including 61 (6.4%) High-Risk sites and $38,980 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 930 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Snohomish 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📊 Snohomish County, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Snohomish County
ZIP Codes in Snohomish County
Top EPA Regulated Facilities in Snohomish 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 • MARYSVILLE, WA (ZIP 98270 Sector) | HIGH (67/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MARYSVILLE, WA (ZIP 98223 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 • EVERETT, WA (ZIP 98205 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, WA (ZIP 98223 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 • EVERETT, WA (ZIP 98201 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, WA (ZIP 98223 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ARLINGTON, WA (ZIP 98223 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 • MARYSVILLE, WA (ZIP 98223 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| PENSKE TRUCK LEASING EVERETT CO LP FREE PREVIEW (LOW RISK) | 2410 RAILWAY AVENUE, EVERETT, WA 98201 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| JOSEPHINE 23RD ST ROUNDABOUT FREE PREVIEW (LOW RISK) | 2324 172ND ST NE, MARYSVILLE, WA 98223 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| SKY VALLEY EDUCATION CENTER FREE PREVIEW (LOW RISK) | 351 SHORT COLUMBIA STREET, MONROE, WA 98272 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| I-5 STILLAGUAMISH RIVER BRIDGE PAINTING FREE PREVIEW (LOW RISK) | UNSPECIFIED, ARLINGTON, WA 98223 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Snohomish County, Washington Environmental Due Diligence
How many EPA-regulated environmental sites are in Snohomish County County, Washington?
Public U.S. EPA records track 952 regulated facilities in Snohomish County County, Washington (ranking #11 of 75 jurisdictions in WA). Of those, 61 (6.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 280 (29.4%) have active non-compliance quarters.
Which ZIP codes and cities in Snohomish County County have the highest regulated facility density?
Within Snohomish County County, the highest concentrations of EPA-tracked facilities are located in ZIP 98012 (Bothell, 255 sites), ZIP 98292 (Stanwood, 128 sites), ZIP 98294 (Sultan, 46 sites), spanning municipal corridors including Marysville (384 sites), Stanwood (121 sites), Sultan (45 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Snohomish County County?
Across Snohomish County County, 3 facilities (0.3% 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 Snohomish County County, WA?
Geologic indoor air screening places Snohomish 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 Snohomish County County, WA?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 930 Clean Water Act NPDES permits, and 161 impaired water dischargers in Snohomish County County, alongside 5 historical FEMA federal disaster declarations (4 flood/storm events).
Does Snohomish County, WA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Snohomish 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.