UST Check → counties → Washington → Cowlitz
Underground storage tanks & leak sites in Cowlitz 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.
356registered tank facilities
206open tanks
797closed tanks
58leak incidents on record
55cleanups still open
55 leak cleanups in
Cowlitz 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 |
|---|---|---|---|---|
| INDUSTRIAL WAY FOOD MART | Longview | 7 / 0 | Open UST(s) | WA61121912 |
| QUICK STOP #4 | Longview | 5 / 1 | Open UST(s) | WA99315634 |
| ROCKET CHEVRON | Castle Rock | 5 / 0 | Open UST(s) | WA29688198 |
| WILCOX & FLEGEL FUEL OIL | Longview | 5 / 0 | Open UST(s) | WA75651759 |
| TENNANT WAY TEXACO | Longview | 5 / 0 | Open UST(s) | WA99195484 |
| GATEWAY FOOD AND FUEL | Castle Rock | 4 / 5 | Open UST(s) | WA36815274 |
| WOODLAND SCHOOL DISTRICT NO 404 | Woodland | 4 / 1 | Open UST(s) | WA67599995 |
| OCEAN BEACH CHEVRON | Longview | 4 / 1 | Open UST(s) | WA94989386 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| WESTSIDE SHOPPER | LONGVIEW | not reported | Petroleum-Other | WA7998 |
| KID VALLEY STORE | TOUTLE | not reported | Benzene | WA8052 |
| KALAMA PORT OF COLUMBIA FIBRE | KALAMA | not reported | Benzene | WA7432 |
| ASTRO 745 - Minit Mart | WOODLAND | not reported | Petroleum-Other | WA8142 |
| COWLITZ COUNTY KELSO SHOP | KELSO | not reported | Petroleum-Other | WA7441 |
| ARATEX | LONGVIEW | not reported | Petroleum-Other | WA4984 |
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 356 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 55 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