UST Check → counties → New York → Suffolk
Underground storage tanks & leak sites in Suffolk County, NY
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.
359registered tank facilities
539open tanks
269closed tanks
1,442leak incidents on record
14cleanups still open
14 leak cleanups in
Suffolk 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 |
|---|---|---|---|---|
| BELMONT LAKE STATE PARK | NORTH BABYLON | 9 / 0 | Open UST(s) | NY554525 |
| FARMINGDALE STATE COLLEGE | FARMINGDALE | 6 / 0 | Open UST(s) | NY505214 |
| SUNKEN MEADOW PARK | KINGS PARK | 6 / 0 | Open UST(s) | NY538157 |
| COASTAL / 270 MAIN ST CORP | RONKONKOMA | 6 / 0 | Open UST(s) | NY338392 |
| CITGO | KINGS PARK | 6 / 0 | Open UST(s) | NY337198 |
| MOBIL SERVICE STATION | FISHERS ISLAND | 6 / 0 | Open UST(s) | NY355002 |
| OK PETROLEUM | BAY SHORE | 5 / 0 | Open UST(s) | NY358431 |
| US PETROLEUM | MEDFORD | 5 / 0 | Open UST(s) | NY361081 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| OK PETROLEUM | NORTH BABYLON | 2002-07-18 | — | NY204579 |
| MOBIL GAS STATION | COMMACK | 2002-03-04 | — | NY111410 |
| OK PETROLEUM | WYANDANCH | 1991-10-21 | — | NY9107759 |
| NORTHVILLE S/S | WEST ISLIP | 1991-07-31 | — | NY9104719 |
| SHELL S/S | MELVILLE | 1991-03-26 | — | NY9100146 |
| MELISSA S/S | DEER PARK | 1991-03-20 | — | NY9013006 |
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 359 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 14 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