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County file — SD

Underground Storage Tanks in Gregory County, SD — 25 facilities, 45 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Gregory County, population 4,227.

25UST facilities
23tanks in service
60closed tanks
45leak records
3open cases
42no further action

Gregory County has 25 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 23 tanks in service and 60 tanks that have been closed or removed. Over the life of the program, 45 fuel releases were reported here; 42 (93% of records) were investigated and closed with No Further Action, and 3 of those cleanup cases were still open when the snapshot was compiled.

That works out to 54.4 tanks in service per 10,000 residents, well above the South Dakota average of 32.8 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 Gregory County, SD?

The EPA UST Finder snapshot lists 25 registered UST facilities in Gregory County with 23 tanks currently in service, 60 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Gregory County?

45 releases from underground storage tanks are on record for Gregory County. 42 (93%) reached No Further Action status, while 3 cleanup cases remained open in the snapshot.

How do I check a specific address in Gregory County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Gregory 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 SD DANR Tanks & Spills.

Verify with the state

The live regulatory record for any Gregory County facility or leak case is held by the SD DANR Tanks & Spills. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in South Dakota

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