UST Check → counties → Washington → Clallam
Underground storage tanks & leak sites in Clallam 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.
284registered tank facilities
148open tanks
688closed tanks
45leak incidents on record
39cleanups still open
39 leak cleanups in
Clallam 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 |
|---|---|---|---|---|
| CLALLAM COOPERATIVE ASSOCIATION INC | Sequim | 5 / 4 | Open UST(s) | WA89728125 |
| DASHMESH PETROLEUM 13 INC | Port Angeles | 5 / 0 | Open UST(s) | WA33918374 |
| LOVELL ROAD RUNNER 76 | Port Angeles | 4 / 5 | Open UST(s) | WA23338269 |
| 101 OUTPOST STATION | Sequim | 4 / 5 | Open UST(s) | WA29844397 |
| PORT ANGELES COUNTY SHOP | Port Angeles | 4 / 3 | Open UST(s) | WA32457433 |
| ARCO 07010 STRASBURGER CONVENIENCE 07010 | Port Angeles | 4 / 3 | Open UST(s) | WA67489663 |
| MT PLEASANT SERVICE | Port Angeles | 4 / 0 | Open UST(s) | WA77125697 |
| FAIRMOUNT GROCERY AND MOTEL | Port Angeles | 4 / 0 | Open UST(s) | WA33398663 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| OLYMPIC MEDICAL CENTER | PORT ANGELES | not reported | Arsenic | WA14679 |
| ST MARY'S TEXACO | PORT ANGELES | not reported | Petroleum-Other | WA8084 |
| SNIDER WORK CENTER | PORT ANGELES | not reported | Benzene | WA8108 |
| WDOT SEKIU MAINTENANCE SITE | SEKIU | not reported | Petroleum-Other | WA8123 |
| PORT ANGELES PORT | PORT ANGELES | not reported | Petroleum-Other | WA8192 |
| KARDLOCK 3382 | PORT ANGELES | not reported | Petroleum-Gasoline | WA8210 |
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 284 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 39 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