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TankCheck / States / South Carolina

County file — SC

Underground Storage Tanks in Williamsburg County, SC — 189 facilities, 136 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Williamsburg County, population 33,331.

189UST facilities
90tanks in service
447closed tanks
136leak records
43open cases
93no further action

Williamsburg County has 189 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 90 tanks in service and 447 tanks that have been closed or removed. Over the life of the program, 136 fuel releases were reported here; 93 (68% of records) were investigated and closed with No Further Action, and 43 of those cleanup cases were still open when the snapshot was compiled.

That works out to 27.0 tanks in service per 10,000 residents, well above the South Carolina average of 20.4 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 Williamsburg County, SC?

The EPA UST Finder snapshot lists 189 registered UST facilities in Williamsburg County with 90 tanks currently in service, 447 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Williamsburg County?

136 releases from underground storage tanks are on record for Williamsburg County. 93 (68%) reached No Further Action status, while 43 cleanup cases remained open in the snapshot.

How do I check a specific address in Williamsburg County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Williamsburg 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 SC DES UST Program.

Verify with the state

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

Nearby countys in South Carolina

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