Franklin Park Water Hardness & Quality Report (2026)

Franklin Park Municipal Authority serves Franklin Park in Allegheny County, Pennsylvania, supplying drinking water to about 15,000 residents. The utility draws from a mix of groundwater wells tapping local aquifers and potentially surface water from the Allegheny River system, all managed within the Ohio River Basin watershed. Water undergoes primary treatment at the authority's own facility, including filtration and disinfection, to meet all federal and state drinking water regulations. This suburban community's water originates in the Allegheny River watershed, part of the larger Ohio River Basin, where tributaries drain the glaciated Appalachian Plateau.

The underlying geology features Mississippian-age Loyalhanna Limestone and Pennsylvanian-age Conemaugh Group shales and sandstones. These rock layers create productive karst aquifers that are susceptible to mineral leaching. This geological setting naturally imparts a hard character to the water because of the dissolution of carbonates, resulting in moderately mineralized groundwater that reflects the limestone-rich terrain. This hardness is typical for western Pennsylvania.

Homeowners often notice scale buildup in appliances like dishwashers, washing machines, and water heaters, which can decrease their efficiency and lifespan. Faucet aerators and showerheads may clog more frequently, and detergents might not work as effectively, potentially leaving spots on dishes and clothes. Regular maintenance, such as monthly descaling with vinegar for appliances, is advised. To significantly extend equipment life, reduce soap usage by half, and improve skin and hair condition, installing a whole-house water softener is highly recommended. The water is monitored for contaminants, including disinfection byproducts like total trihalomethanes, and PFAS compounds, with treatment processes in place to manage these.