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County file — PA

Underground Storage Tanks in Chester County, PA — 1,148 facilities, 691 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Chester County, population 523,967.

1,148UST facilities
597tanks in service
2,860closed tanks
691leak records
73open cases
618no further action

Chester County has 1,148 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 597 tanks in service and 2,860 tanks that have been closed or removed, plus 35 temporarily out of service. Over the life of the program, 691 fuel releases were reported here; 618 (89% of records) were investigated and closed with No Further Action, and 73 of those cleanup cases were still open when the snapshot was compiled.

That works out to 11.4 tanks in service per 10,000 residents, well below the Pennsylvania average of 15.8 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 Chester County, PA?

The EPA UST Finder snapshot lists 1,148 registered UST facilities in Chester County with 597 tanks currently in service, 2,860 closed or removed tanks, and 35 temporarily out of service.

How many fuel leaks have been reported in Chester County?

691 releases from underground storage tanks are on record for Chester County. 618 (89%) reached No Further Action status, while 73 cleanup cases remained open in the snapshot.

How do I check a specific address in Chester County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Chester 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 PA DEP Storage Tank Program.

Verify with the state

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

Nearby countys in Pennsylvania

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