Superfund/Washington

Pollution & Cleanup

PFAS-Confirmed Superfund Sites in Washington

These are EPA National Priorities List (NPL) Superfund sites in Washington with documented PFAS contamination. It's a statewide list, not an address check — the presence of a site somewhere in the state doesn't mean any specific home is affected. To know whether a site is near a particular property, check that address directly.

17 PFAS-confirmed Superfund sites in Washington

From EPA's National Priorities List, filtered to sites with confirmed PFAS contamination. EPA's broader Superfund/SEMS inventory is larger and includes non-PFAS and assessment-stage sites.

SiteType / status
American Lake Gardens/Mcchord AFBFederal · NPL: Final
Bangor Naval Submarine BaseFederal · NPL: Final
Fairchild Air Force Base (4 Waste Areas)Federal · NPL: Final
Fort Lewis Logistics CenterFederal · NPL: Final
Hanford 100-Area (Usdoe)Federal · NPL: Final
Hanford 1100-Area (Usdoe)Federal · NPL: Deleted
Hanford 200-Area (Usdoe)Federal · NPL: Final
Hanford 300-Area (Usdoe)Federal · NPL: Final
Jackson Park Housing Complex (Usnavy)Federal · NPL: Final
Mcchord Air Force Base (Wash Rack/Treatment Area)Federal · NPL: Deleted
Moses Lake Wellfield ContaminationPrivate · NPL: Final
Naval Air Station, Whidbey Island (Ault Field)Federal · NPL: Final
Naval Air Station, Whidbey Island (Seaplane Base)Federal · NPL: Deleted
Naval Undersea Warfare Engineering Station (4 Waste Areas)Federal · NPL: Final
Old Navy Dump/Manchester Laboratory (Usepa/Noaa)Federal · NPL: Final
Port Hadlock Detachment (Usnavy)Federal · NPL: Deleted
Puget Sound Naval Shipyard ComplexFederal · NPL: Final

Check Superfund sites near a specific Washington address →

VetMyAddress maps nearby EPA Superfund/NPL sites and grades the address A–F alongside its water, PFAS, flood, and air data.

We start your address profile right away, then check EPA, FEMA, AirNow, public water, and Census-backed records where available. Public sources may take a short time to respond.

What this Washingtonlist does — and doesn't — tell you

A site appearing on this page means EPA has confirmed PFAS contamination at a National Priorities List Superfund site somewhere in Washington. It is a statewide screening list. It does not tell you the distance from any specific home, the exposure pathway, or whether the local drinking-water system is affected.

For a specific property, the things that actually matter are:

  • Distance to the nearest site — risk generally drops sharply with distance.
  • Contamination type & pathway — groundwater PFAS matters most if the home draws from a private well or an affected public system.
  • Cleanup stage— active vs. “construction complete” vs. deleted.
  • The home's water source— pair Superfund proximity with the property's drinking-water and PFAS data.

That address-level synthesis — nearest-site distance plus the home's full environmental profile in one A–F grade — is what the VetMyAddress report is for.

Frequently Asked Questions

How many PFAS-confirmed Superfund sites are in Washington?

Our curated EPA dataset lists 17 PFAS-confirmed Superfund (NPL) sites in Washington, including American Lake Gardens/Mcchord AFB, Bangor Naval Submarine Base, Fairchild Air Force Base (4 Waste Areas). EPA's full Superfund inventory (including non-PFAS and assessment-stage sites) is larger — a specific-address report checks all SEMS sites near the property.

Does a nearby Superfund site affect a Washington home?

Proximity is a starting point, not a verdict. Real-world impact depends on distance, the type of contamination, the exposure pathway (groundwater, soil, vapor), the home's water source, and the cleanup stage. A site two miles away marked 'construction complete' is very different from an active site next door.

How do I check Superfund sites for a specific Washington address?

Use VetMyAddress to see EPA Superfund/NPL sites near any Washington address, bundled with the home's drinking water, PFAS, flood zone, and air-quality data in a single plain-English A–F grade. EPA's own ECHO database (echo.epa.gov) is the free, official source if you prefer to dig through the raw records.

What does 'PFAS-confirmed' mean for an NPL site?

It means PFAS ('forever chemicals') have been documented in the contamination at that National Priorities List site. PFAS is persistent and can migrate through groundwater, so a confirmed PFAS site is worth pairing with the home's drinking-water and PFAS data to understand the exposure pathway.