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County file — CT

Underground Storage Tanks in Windham County, CT — 374 facilities, 74 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Windham County, population 118,762.

374UST facilities
172tanks in service
1,057closed tanks
74leak records
35open cases
39no further action

Windham County has 374 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 172 tanks in service and 1,057 tanks that have been closed or removed, plus 18 temporarily out of service. Over the life of the program, 74 fuel releases were reported here; 39 (53% 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 14.5 tanks in service per 10,000 residents, about equal to the Connecticut average of 14.2 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 Windham County, CT?

The EPA UST Finder snapshot lists 374 registered UST facilities in Windham County with 172 tanks currently in service, 1,057 closed or removed tanks, and 18 temporarily out of service.

How many fuel leaks have been reported in Windham County?

74 releases from underground storage tanks are on record for Windham County. 39 (53%) reached No Further Action status, while 35 cleanup cases remained open in the snapshot.

How do I check a specific address in Windham County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Windham 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 CT DEEP UST Program.

Verify with the state

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

Nearby countys in Connecticut

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