Frankford Water Hardness & Quality Report (2026)

Frankford, Pennsylvania, in Philadelphia County in the lower Northeast Philadelphia neighborhood — a dense urban community along the Frankford Creek corridor and Frankford Avenue transit spine — receives its municipal water from the Philadelphia Water Department (PWD), which draws from the Schuylkill River at the Queen Lane intake and the Delaware River at the Baxter intake, treating water at three main plants before distribution throughout the city. Frankford's northeast Philadelphia position is primarily supplied from the Schuylkill River-dominant treatment system.

The hard 188 mg/L hardness and elevated TDS of 452.4 mg/L reflect the Schuylkill River's complex upper basin geology. The Schuylkill River drains the Pennsylvania anthracite coal basin of Schuylkill and Berks counties — a landscape of Pennsylvanian and Devonian carboniferous formations with significant calcareous limestone and dolomite interbedded with the coal measures, along with historical acid mine drainage (AMD) that mobilizes dissolved metals and minerals. The Schuylkill's moderately elevated hardness and TDS reflect decades of mine drainage chemistry from the Reading Prong and coal basin tributaries contributing to the river's mineral load.

At 188 mg/L, Frankford residents deal with hard water on par with the harder end of the Philadelphia water system. Scale builds in kettles and coffee machines within weeks, dishwashers benefit from rinse aid, and bathroom fixtures develop calcium deposits. Descaling appliances every six to eight weeks is practical for northeast Philadelphia households. The elevated PFAS level of 9.6 ppt is a significant concern for Frankford — the Schuylkill River basin's dense industrial history, former military installations, and petrochemical corridor from Reading to Norristown contribute substantially to the PFAS load in the Philadelphia water supply. A certified reverse osmosis filter for drinking water is strongly advisable.