UST Check → counties → Washington → Island
Underground storage tanks & leak sites in Island 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.
115registered tank facilities
65open tanks
265closed tanks
18leak incidents on record
18cleanups still open
18 leak cleanups in
Island 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 |
|---|---|---|---|---|
| NAOMI'S SELF-SERVE AND GROCERY | Langley | 5 / 9 | Open UST(s) | WA11217637 |
| WEST VIEW MART | Oak Harbor | 4 / 6 | Open UST(s) | WA53233419 |
| BAYVIEW VALERO | Langley | 4 / 5 | Open UST(s) | WA2765189 |
| SKAGIT FARMERS SUPPLY | Oak Harbor | 4 / 3 | Open UST(s) | WA18351542 |
| CAMANO PLAZA TEXACO | Camano Island | 4 / 2 | Open UST(s) | WA49473482 |
| ARCO FAC# 7057 | Oak Harbor | 4 / 0 | Open UST(s) | WA35244876 |
| MIDWAY CARWASH AND AUTO GLASS | Oak Harbor | 4 / 0 | Open UST(s) | WA73142516 |
| LIBERTY MARKET | Oak Harbor | 4 / 0 | Open UST(s) | WA61519445 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Whidbey Marine & Auto Supply | FREELAND | not reported | Petroleum Products-Unspecified | WA5610 |
| Island Disposal | COUPEVILLE | not reported | Benzene | WA5046 |
| Naomi's Selfserve & Grocery Liberty 903 | LANGLEY | not reported | Benzene | WA7881 |
| WA State Parks Marine Crew Yard | OAK HARBOR | not reported | Petroleum-Other | WA8459 |
| Oak Harbor Marina | OAK HARBOR | not reported | Petroleum-Other | WA10997 |
| Coupes Greenbank Store | GREENBANK | not reported | Benzene | WA11027 |
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 115 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 18 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