County file — ME

Underground Storage Tanks in Penobscot County, ME — 713 facilities, 396 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Penobscot County, population 157,026.

713UST facilities
246tanks in service
1,634closed tanks
396leak records
1open cases
395no further action

Penobscot County has 713 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 246 tanks in service and 1,634 tanks that have been closed or removed, plus 16 temporarily out of service. Over the life of the program, 396 fuel releases were reported here; 395 (100% of records) were investigated and closed with No Further Action, and 1 of those cleanup cases were still open when the snapshot was compiled.

That works out to 15.7 tanks in service per 10,000 residents, about equal to the Maine average of 15.9 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.

Check any address in Penobscot County

Paste an address to map every registered tank and reported leak within a mile — distances in feet, cleanup statuses, and an A–F screening grade. Free, no login.

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Frequently asked questions

How many underground storage tanks are in Penobscot County, ME?

The EPA UST Finder snapshot lists 713 registered UST facilities in Penobscot County with 246 tanks currently in service, 1,634 closed or removed tanks, and 16 temporarily out of service.

How many fuel leaks have been reported in Penobscot County?

396 releases from underground storage tanks are on record for Penobscot County. 395 (100%) reached No Further Action status, while 1 cleanup cases remained open in the snapshot.

How do I check a specific address in Penobscot County?

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

Verify with the state

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

Nearby countys in Maine

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