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State file — PA

Underground storage tanks in Pennsylvania

32,435 registered facilities · 20,512 tanks in service · 17,487 leak records · 1,775 open cleanup cases (EPA UST Finder snapshot, 2018–2021 state data).

32,435UST facilities
20,512tanks in service
77,775closed tanks
17,487leak records
1,775open cases
90%cases closed / NFA

Pennsylvania runs 15.8 tanks in service per 10,000 residents (population 12,976,662). 15,712 of its 17,487 reported releases have reached No Further Action. The regulator of record is the PA DEP Storage Tank Program, which holds the live registration and case files.

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By county

CountyFacilitiesTanks in serviceLeak recordsOpen cases
Adams County31718215123
Allegheny County2,3111,6811,580109
Armstrong County26117112616
Beaver County41226527216
Bedford County1841739227
Berks County1,27065356752
Blair County37726320821
Bradford County234212807
Bucks County1,29467595286
Butler County50637315112
Cambria County46529322515
Cameron County3012110
Carbon County200140848
Centre County3412661419
Chester County1,14859769173
Clarion County183106373
Clearfield County35622514814
Clinton County192124765
Columbia County232166758
Crawford County28613211210
Cumberland County68745430141
Dauphin County86152445450
Delaware County873613684113
Elk County13485347
Erie County67545928431
Fayette County37927324414
Forest County381792
Franklin County44733615934
Fulton County6153184
Greene County14586869
Huntingdon County1551167313
Indiana County31219117116
Jefferson County222125414
Juniata County10481397
Lackawanna County55642633326
Lancaster County1,75381572850
Lawrence County2301648618
Lebanon County46327525917
Lehigh County88753346021
Luzerne County97168461444
Lycoming County54825918716
McKean County226132508
Mercer County37921615015
Mifflin County1571217113
Monroe County37833025122
Montgomery County1,9799261,389129
Montour County6348184
Northampton County72746638419
Northumberland County35322010720
Perry County145108643
Philadelphia County1,6991,2841,344217
Pike County151102868
Potter County12083378
Schuylkill County54132328117
Snyder County155106334
Somerset County36822617714
Sullivan County5456131
Susquehanna County1391501049
Tioga County184148787
Union County128109404
Venango County2071207311
Warren County15490504
Washington County60030138837
Wayne County1761627910
Westmoreland County95662461941
Wyoming County10995545
York County1,18768850494

Frequently asked questions

How many underground storage tanks are in Pennsylvania?

The EPA UST Finder snapshot lists 32,435 registered UST facilities in Pennsylvania, with 20,512 tanks in service and 77,775 closed or removed tanks across 67 countys.

How many tank leaks have been reported in Pennsylvania?

17,487 releases are on record statewide. 15,712 (90%) were closed with No Further Action; 1,775 cleanup cases remained open in the snapshot.

Which Pennsylvania county has the most underground storage tanks?

By facility count: Allegheny (2,311), Montgomery (1,979), Lancaster (1,753), Philadelphia (1,699), Bucks (1,294). Use the county pages for tank and leak detail, or screen any specific address free at https://tankcheckusa.site/.