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County file — NY

Underground Storage Tanks in Nassau County, NY — 260 facilities, 1,555 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Nassau County, population 1,368,111.

260UST facilities
464tanks in service
107closed tanks
1,555leak records
47open cases
1,508no further action

Nassau County has 260 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 464 tanks in service and 107 tanks that have been closed or removed. Over the life of the program, 1,555 fuel releases were reported here; 1,508 (97% of records) were investigated and closed with No Further Action, and 47 of those cleanup cases were still open when the snapshot was compiled.

That works out to 3.4 tanks in service per 10,000 residents, well below the New York average of 11.7 per 10,000. Countywide numbers are context, not a verdict on any parcel — tank risk is hyper-local, falling off within a few hundred feet.

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Frequently asked questions

How many underground storage tanks are in Nassau County, NY?

The EPA UST Finder snapshot lists 260 registered UST facilities in Nassau County with 464 tanks currently in service, 107 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Nassau County?

1,555 releases from underground storage tanks are on record for Nassau County. 1,508 (97%) reached No Further Action status, while 47 cleanup cases remained open in the snapshot.

How do I check a specific address in Nassau County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Nassau County address to map every registered tank and reported leak within a mile, with distances in feet and an A–F screening grade. Verify current records with the NYSDEC Bulk Storage Program.

Verify with the state

The live regulatory record for any Nassau County facility or leak case is held by the NYSDEC Bulk Storage Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in New York

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