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County file — DE

Underground Storage Tanks in Sussex County, DE — 866 facilities, 1,088 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Sussex County, population 226,778.

866UST facilities
322tanks in service
2,432closed tanks
1,088leak records
43open cases
1,045no further action

Sussex County has 866 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 322 tanks in service and 2,432 tanks that have been closed or removed, plus 7 temporarily out of service. Over the life of the program, 1,088 fuel releases were reported here; 1,045 (96% 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 14.2 tanks in service per 10,000 residents, above the Delaware average of 12.1 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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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 Sussex County, DE?

The EPA UST Finder snapshot lists 866 registered UST facilities in Sussex County with 322 tanks currently in service, 2,432 closed or removed tanks, and 7 temporarily out of service.

How many fuel leaks have been reported in Sussex County?

1,088 releases from underground storage tanks are on record for Sussex County. 1,045 (96%) reached No Further Action status, while 43 cleanup cases remained open in the snapshot.

How do I check a specific address in Sussex County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Sussex 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 DNREC Tank Management Section.

Verify with the state

The live regulatory record for any Sussex County facility or leak case is held by the DNREC Tank Management Section. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Delaware

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