UST Check → counties → Washington → Snohomish
Underground storage tanks & leak sites in Snohomish 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.
1,163registered tank facilities
805open tanks
2,767closed tanks
251leak incidents on record
236cleanups still open
236 leak cleanups in
Snohomish 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 |
|---|---|---|---|---|
| COMMUNITY TRANSIT | Everett | 8 / 8 | Open UST(s) | WA85634861 |
| OLDS-OLYMPIC INC | Lynnwood | 7 / 0 | Open UST(s) | WA11261574 |
| BOEING COMMERCIAL AIRPLANE COMPANY | Everett | 6 / 39 | Open UST(s) | WA2703 |
| SNOHOMISH CO-OP, INC. | Snohomish | 5 / 10 | Open UST(s) | WA24188218 |
| PETROCARD INC | Stanwood | 5 / 8 | Open UST(s) | WA42615692 |
| LOCHSLOY GROCERY | Lake Stevens | 5 / 7 | Open UST(s) | WA31293168 |
| ARLINGTON FUEL STOP | Arlington | 5 / 5 | Open UST(s) | WA2812 |
| LYNNWOOD SHELL FOOD MART | Lynnwood | 5 / 4 | Open UST(s) | WA6326863 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| WA DOT Ebey Slough Bridge Replacement Project | MARYSVILLE | not reported | Benzene | WA12040 |
| Exxon 76930 Nicks Auto | LYNNWOOD | not reported | Benzene | WA7985 |
| CEDARHOME GROCERY | STANWOOD | not reported | Petroleum-Gasoline | WA7989 |
| Texaco 120848 | EVERETT | not reported | Benzene | WA7060 |
| Sound Tractor | EVERETT | not reported | Benzene | WA8020 |
| UNOCAL 4196 | MARYSVILLE | not reported | Halogenated Organics | WA5562 |
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 1,163 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 236 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