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County file — NJ

Underground Storage Tanks in Mercer County, NJ — 983 facilities, 733 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Mercer County, population 373,006.

983UST facilities
537tanks in service
3,385closed tanks
733leak records
204open cases
529no further action

Mercer County has 983 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 537 tanks in service and 3,385 tanks that have been closed or removed, plus 28 temporarily out of service. Over the life of the program, 733 fuel releases were reported here; 529 (72% of records) were investigated and closed with No Further Action, and 204 of those cleanup cases were still open when the snapshot was compiled.

That works out to 14.4 tanks in service per 10,000 residents, above the New Jersey average of 13.4 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 Mercer County, NJ?

The EPA UST Finder snapshot lists 983 registered UST facilities in Mercer County with 537 tanks currently in service, 3,385 closed or removed tanks, and 28 temporarily out of service.

How many fuel leaks have been reported in Mercer County?

733 releases from underground storage tanks are on record for Mercer County. 529 (72%) reached No Further Action status, while 204 cleanup cases remained open in the snapshot.

How do I check a specific address in Mercer County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Mercer 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 NJDEP UST Program.

Verify with the state

The live regulatory record for any Mercer County facility or leak case is held by the NJDEP UST Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in New Jersey

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