TankCheck

TankCheck / States / Maryland

County file — MD

Underground Storage Tanks in Harford County, MD — 559 facilities, 644 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Harford County, population 257,338.

559UST facilities
249tanks in service
1,805closed tanks
644leak records
6open cases
638no further action

Harford County has 559 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 249 tanks in service and 1,805 tanks that have been closed or removed. Over the life of the program, 644 fuel releases were reported here; 638 (99% of records) were investigated and closed with No Further Action, and 6 of those cleanup cases were still open when the snapshot was compiled.

That works out to 9.7 tanks in service per 10,000 residents, below the Maryland average of 11.8 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.

Check any address in Harford County

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.

Screen an address

Frequently asked questions

How many underground storage tanks are in Harford County, MD?

The EPA UST Finder snapshot lists 559 registered UST facilities in Harford County with 249 tanks currently in service, 1,805 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Harford County?

644 releases from underground storage tanks are on record for Harford County. 638 (99%) reached No Further Action status, while 6 cleanup cases remained open in the snapshot.

How do I check a specific address in Harford County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Harford 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 MDE Oil Control Program.

Verify with the state

The live regulatory record for any Harford County facility or leak case is held by the MDE Oil Control Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Maryland

← All Maryland counts