Carbon County, Pennsylvania: drinking water report. Carbon County in northeastern Pennsylvania has about 65,000 residents in the Lehigh Valley foothills,…
Carbon County in northeastern Pennsylvania has about 65,000 residents in the Lehigh Valley foothills, with Jim Thorpe and Lehighton as the main communities. The Lehigh River and local reservoirs provide surface water, while many residents rely on private wells. Coal mining shaped this county as profoundly as any in Pennsylvania – anthracite mining operated here from the early 1800s through the mid-20th century.
Acid mine drainage from hundreds of abandoned anthracite mines impairs streams throughout Carbon County. According to the Pennsylvania DEP's 2024 assessment, over 75 miles of streams in the county are degraded by mine drainage, carrying elevated iron, manganese, aluminum, and sulfate. The abandoned Lehigh Navigation Coal Company mines beneath the Borough of Lansford have caused subsidence and continue to discharge contaminated water.
The former Tamaqua airport has documented AFFF use. Pennsylvania DEP's 2024 PFAS investigation found PFOS at 7 ppt in monitoring wells near the site. Private well owners in the coal mining zones face the most direct exposure to mine drainage contaminants – the aquifer beneath the mining areas is essentially a network of flooded mine voids.
Carbon County's mine drainage legacy means your well water may contain elevated metals even if it looks clear – manganese, in particular, can be present at health-relevant concentrations without visible discoloration.
Check your water for available data. For mine drainage metals, a whole-house oxidation filter handles iron and manganese. For PFAS, add reverse osmosis at the kitchen tap. Our water filter guide covers Appalachian well water systems. Pull your detailed report for local trends, and visit our Pennsylvania page for statewide context.