UST Check → counties → Washington → Kittitas
Underground storage tanks & leak sites in Kittitas 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.
189registered tank facilities
98open tanks
427closed tanks
40leak incidents on record
38cleanups still open
38 leak cleanups in
Kittitas 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 |
|---|---|---|---|---|
| MIDSTATE CO-OP | Ellensburg | 7 / 0 | Open UST(s) | WA48166467 |
| LOVE'S TRAVEL STOP #413 | Ellensburg | 6 / 0 | Open UST(s) | WA18911356 |
| BROADWAY TRUCK STOP/SERVICE | Ellensburg | 5 / 9 | Open UST(s) | WA394 |
| A-1 PETROLEUM AND PROPANE | Ellensburg | 4 / 4 | Open UST(s) | WA42843332 |
| FLYING B 27 | Ellensburg | 4 / 0 | Open UST(s) | WA48844215 |
| CLE ELUM SHORT STOP #6 | Cle Elum | 4 / 0 | Open UST(s) | WA24266265 |
| WILLETTE'S SHELL SERVICE | Cle Elum | 3 / 7 | Open UST(s) | WA39884417 |
| VANTAGE MAIN STREET STATION | Vantage | 3 / 6 | Open UST(s) | WA69872699 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Millpond Manor Mobile Home Park | ELLENSBURG | not reported | Benzene | WA5602 |
| Okanogan Seattle Transport Company Inc | ELLENSBURG | not reported | Petroleum-Diesel | WA5628 |
| Pilot Travel Center 389 | ELLENSBURG | not reported | Petroleum Products-Unspecified | WA5649 |
| Gillon Chevron | CLE ELUM | not reported | Benzene | WA5745 |
| Mackners Transport | ELLENSBURG | not reported | Lead | WA11724 |
| Chevron 95179 | ELLENSBURG | not reported | Benzene | WA5855 |
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 189 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 38 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