King County, Washington — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in King County, WA?
In King County, Washington, public U.S. EPA records track 1,538 regulated facilities (#6 of 75 in Washington), including 122 (7.9%) High-Risk sites and $742,530 in federal penalties. Countywide due diligence also covers 5 Safe Drinking Water (SDWIS) facilities, 1,502 Clean Water NPDES permits, 4 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).
King 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📊 King County, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in King County
Top EPA Regulated Facilities in King 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 • RENTON, WA (ZIP 98055 Sector) | HIGH (70/100) | Violation Identified (6 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98178 Sector) | HIGH (69/100) | Significant Violation (4 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ISSAQUAH, WA (ZIP 98029 Sector) | HIGH (67/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • BELLEVUE, WA (ZIP 98104 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • KENT, WA (ZIP 98032 Sector) | HIGH (65/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • RENTON, WA (ZIP 98055 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 • SEATTLE, WA (ZIP 98108 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • RENTON, WA (ZIP 98055 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| PRIME NOW LLC - ZST4 FREE PREVIEW (LOW RISK) | 5100 15TH AVE NW, SEATTLE, WA 98107 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| ICU, LLC DBA NORTH PACIFIC FREE PREVIEW (LOW RISK) | 18420 68TH AVE S STE 110, KENT, WA 98032 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — King County, Washington Environmental Due Diligence
How many EPA-regulated environmental sites are in King County County, Washington?
Public U.S. EPA records track 1,538 regulated facilities in King County County, Washington (ranking #6 of 75 jurisdictions in WA). Of those, 122 (7.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 458 (29.8%) have active non-compliance quarters.
Which ZIP codes and cities in King County County have the highest regulated facility density?
Within King County County, the highest concentrations of EPA-tracked facilities are located in ZIP 98034 (Kirkland, 217 sites), ZIP 98144 (Seattle, 129 sites), ZIP 98092 (Auburn, 94 sites), spanning municipal corridors including Kirkland (420 sites), Newcastle (42 sites), Carnation (41 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in King County County?
Across King County County, 4 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 King County County, WA?
Geologic indoor air screening places King 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 King County County, WA?
Federal records track 5 Safe Drinking Water (SDWIS) facilities, 1,502 Clean Water Act NPDES permits, and 311 impaired water dischargers in King County County, alongside 4 historical FEMA federal disaster declarations (3 flood/storm events).
Does King County, WA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for King 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.