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County file — SD

Underground Storage Tanks in Clay County, SD — 40 facilities, 52 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Clay County, population 14,041.

40UST facilities
45tanks in service
99closed tanks
52leak records
3open cases
49no further action

Clay County has 40 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 45 tanks in service and 99 tanks that have been closed or removed, plus 2 temporarily out of service. Over the life of the program, 52 fuel releases were reported here; 49 (94% 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 32.0 tanks in service per 10,000 residents, about equal to 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 Clay County, SD?

The EPA UST Finder snapshot lists 40 registered UST facilities in Clay County with 45 tanks currently in service, 99 closed or removed tanks, and 2 temporarily out of service.

How many fuel leaks have been reported in Clay County?

52 releases from underground storage tanks are on record for Clay County. 49 (94%) reached No Further Action status, while 3 cleanup cases remained open in the snapshot.

How do I check a specific address in Clay County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Clay 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 Clay 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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