Logan Water Hardness & Quality Report (2026)

Logan, Pennsylvania, in Philadelphia County — a North Philadelphia neighborhood near Logan Circle and Hunting Park, one of Philadelphia's historic working-class rowhouse neighborhoods along the Broad Street corridor — 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 Water Treatment Plant. Philadelphia's dual river supply system has served the city since the 19th century.

The moderately soft 88.5 mg/L hardness and low TDS of 135.4 mg/L reflect Philadelphia's relatively soft finished water from the blended Schuylkill-Delaware supply after PWD's treatment. The Schuylkill River drains the Reading Prong Precambrian gneiss (crystalline, low-carbonate terrain) in the Pennsylvania Highlands, plus some Valley and Ridge carbonate contributions from upstream anthracite country. The Delaware River at Baxter drains the Catskill Mountain region (Devonian and Silurian shale and sandstone — very soft terrain) and the New Jersey Highlands crystalline basement. Philadelphia Water Department applies lime softening that further reduces the already moderately soft raw source water, producing a finished supply notably softer than many eastern Pennsylvania river cities.

At 88.5 mg/L, Logan's water is moderately soft — comfortable for household use. Scale forms slowly over many months in kettles and appliances, soap lathers well, and the dishwasher produces clean results. Semi-annual descaling of heating appliances is adequate. The PFAS level of 4.4 ppt is among the more favorable readings for urban Philadelphia — the PWD's active PFAS monitoring program, the Schuylkill and Delaware watersheds' upstream industrial discharges, and the Philadelphia metropolitan area's refinery and chemical corridor along the Delaware River contribute to the background, but Philadelphia's effective drinking water treatment program provides one of the better large-city PFAS outcomes.