Matanuska-Susitna County, Washington — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Matanuska-Susitna County, Washington, public U.S. EPA records track 1 regulated facilities (#84 of 84 in Washington), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 1 Safe Drinking Water (SDWIS) facilities, 0 Clean Water NPDES permits, 46 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).
Matanuska-Susitna 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📊 Matanuska-Susitna County, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Matanuska-Susitna County
ZIP Codes in Matanuska-Susitna County
Top EPA Regulated Facilities in Matanuska-Susitna 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 |
|---|---|---|---|---|
| SPEEDWAY EXPRESS 30065 FREE PREVIEW (LOW RISK) | 3450 SOUTH 344TH WAY, STE. 135, AUBURN, WA 98001 | LOW (9/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Matanuska-Susitna County, Washington Environmental Due Diligence
How many EPA-regulated environmental sites are in Matanuska-Susitna County, Washington?
Public U.S. EPA records track 1 regulated facilities in Matanuska-Susitna County, Washington (ranking #84 of 84 jurisdictions in WA). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in Matanuska-Susitna County have the highest regulated facility density?
Within Matanuska-Susitna County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Matanuska-Susitna.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Matanuska-Susitna County?
Across Matanuska-Susitna County, 0 facilities (0.0% 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 Matanuska-Susitna County, WA?
Geologic indoor air screening places Matanuska-Susitna 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 Matanuska-Susitna County, WA?
Federal records track 1 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water dischargers in Matanuska-Susitna County, alongside 46 historical FEMA federal disaster declarations (7 flood/storm events).
Does Matanuska-Susitna County, WA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Matanuska-Susitna 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.