UST Check → counties → Washington → Grays Harbor
Underground storage tanks & leak sites in Grays Harbor County, WA
Every figure below is from EPA UST Finder — the EPA-compiled national registry of state-reported underground storage tanks — county aggregates as published by EPA.
358registered tank facilities
145open tanks
795closed tanks
73leak incidents on record
68cleanups still open
68 leak cleanups in
Grays Harbor County are still open — the state has not closed the case.
An open cleanup near a property you're buying or lending on is a findable, checkable fact: it appears in a
per-address screen with distance and the registry record.
Largest registered facilities
By open-tank count, from the facility-level registry. Every fact is attributed to the EPA record (linked ID); something wrong — use the correction path in the footer and we'll fix or remove it promptly.
| Facility | City | Open / closed tanks | Status | EPA record |
|---|---|---|---|---|
| MASCO PETROLEUM | Westport | 4 / 5 | Open UST(s) | WA92421271 |
| TOADS EXPRESS MART 851 | Elma | 4 / 4 | Open UST(s) | WA97976599 |
| GRAYS HARBOR COUNTY | Montesano | 4 / 2 | Open UST(s) | WA86589541 |
| HARRY'S GROCERY | Oakville | 4 / 0 | Open UST(s) | WA99132788 |
| WESTPORT Y DELI & GROCERY | Westport | 4 / 0 | Open UST(s) | WA42972959 |
| ABERDEEN AM/PM | Aberdeen | 4 / 0 | Open UST(s) | WA42752221 |
| LIBERTY # 906 | Aberdeen | 4 / 0 | Open UST(s) | WA77165487 |
| DASHMESH PETROLEUM 13 | Aberdeen | 4 / 0 | Open UST(s) | WA8655483 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| KRASOWSKI ESTATE PROPERTY | ABERDEEN | not reported | Benzene | WA8171 |
| WESTERN TIMBER SALVAGE | ABERDEEN | not reported | Petroleum-Other | WA8191 |
| TEXACO KEN HARRISON | HOQUIAM | not reported | Petroleum-Other | WA8265 |
| Transmissions Unlimited Aberdeen | ABERDEEN | not reported | Benzene | WA12748 |
| CHEVRON 93843 | ELMA | not reported | Benzene | WA8329 |
| TEXACO WISHKAH ABERDEEN | ABERDEEN | not reported | Petroleum-Other | WA7986 |
What this means if you're buying or lending here
- "Closed" ≠ clean. A closed tank was taken out of service per the registry — many were closed without soil testing, especially before the late 1990s.
- The registry is incomplete by design. Tanks removed before 1986 and most residential heating-oil tanks were never registered. A county with 358 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 68 cases in this county are still open; contamination may still be under investigation or remediation — distance from a specific parcel is what matters, and that's a per-address question.
Screen a specific property
This page covers the county. A purchase or loan decision needs the registry around one address: registered tanks at the parcel, every facility within 500 and 1,500 ft, leak cleanups with status and distance — each line cited to the official record.
Screen an address — $49 How it worksThis is a screen of EPA-registered tank and leak records, not an environmental site assessment. State registries are incomplete by design: tanks removed before 1986 and most residential heating-oil tanks were never registered, so a clean screen cannot prove the absence of a tank. "Closed" means a tank was taken out of service per the registry — it does not certify that no contamination remains.
source: EPA UST Finder EPA data vintage 2024-12-04 computed 2026-06-12