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PFAS in Pennsylvania

DEP is working closely with public water systems and local governments across the Commonwealth to address these emerging contaminants. DEP will take immediate steps to mitigate the impact on public health if combined concentrations of PFOA and PFOS exceed the HAL of 70ppt.


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Allegheny County

​Pittsburgh Air National Guard Base 

Pittsburgh Air Reserve Station

Bucks County

ChemFab NPL Site

Easton Road HSCA Site

Former Naval Air Warfare Center - Warminster (NPL Site)

Ridge Run HSCA Site

Watson Johnson Landfill NPL Site

Centre County

Benner Township HSCA Site

Penn State Former Fire Training Site

Chester County

​National Foam

Cumberland County

Naval Support Activity (NSA) Mechanicsburg

Dauphin County

​Fort Indiantown Gap

Susquehanna Area Regional Airport Authority (HIA) Site

Delaware County

​Lower Darby Creek NPL Site

Franklin County

Letterkenny Army Depot NPL Site

Lebanon County

​Fort Indiantown Gap

Lehigh County

​High Quality Plating HSCA Site

Rodale Manufacturing NPL Site

Luzerne County

​Valmont TCE NPL Site

Lycoming County

​AVCO-Lycoming NPL Site

Monroe County

​Tobyhanna Army Depot TCE NPL Site

Montgomery County

Boyertown Landfill

Former Naval Air Station Joint Reserve Base Willow Grove - Horsham (NPL Site)

Horsham Air National Guard Station

North Penn Area #2 NPL Site

North Penn Area #5 NPL Site

North Penn US Army Reserve Center (Nike PH 91 - Launch)

Philadelphia County

Philadelphia Naval Complex Site

Schuylkill County

Frackville Area HSCA Site

York County

​Newberry Township HSCA Site