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County file — MA

Underground Storage Tanks in Suffolk County, MA — 732 facilities, 494 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Suffolk County, population 774,572.

732UST facilities
598tanks in service
1,734closed tanks
494leak records
35open cases
459no further action

Suffolk County has 732 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 598 tanks in service and 1,734 tanks that have been closed or removed, plus 17 temporarily out of service. Over the life of the program, 494 fuel releases were reported here; 459 (93% of records) were investigated and closed with No Further Action, and 35 of those cleanup cases were still open when the snapshot was compiled.

That works out to 7.7 tanks in service per 10,000 residents, well below the Massachusetts average of 12.1 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 Suffolk County, MA?

The EPA UST Finder snapshot lists 732 registered UST facilities in Suffolk County with 598 tanks currently in service, 1,734 closed or removed tanks, and 17 temporarily out of service.

How many fuel leaks have been reported in Suffolk County?

494 releases from underground storage tanks are on record for Suffolk County. 459 (93%) reached No Further Action status, while 35 cleanup cases remained open in the snapshot.

How do I check a specific address in Suffolk County?

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

Verify with the state

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

Nearby countys in Massachusetts

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