Camden Water Hardness & Quality Report (2026)

Camden, New Jersey, in Camden County on the Delaware River directly across from Philadelphia, draws its municipal water supply from the Delaware River via New Jersey American Water (Camden Division), treating Delaware River water at the Bellmawr Water Treatment Plant and distributing to Camden and surrounding Camden County communities. Camden is historically associated with the shipbuilding industry (New York Ship) and the Victor Talking Machine Company (RCA Camden). Water hardness in Camden measures 127.5 mg/L — classified as moderately hard.

Camden's moderate hardness from the Delaware River supply reflects the river's geology at the Camden–Philadelphia reach. The Delaware River at Camden has drained the entire Delaware Basin — from the Delaware Water Gap region (New Jersey–Pennsylvania Ridge and Valley Silurian and Devonian limestone, sandstone, and shale), the Pocono Plateau (Devonian Pocono Sandstone — siliceous), and the Pine Barrens (Cretaceous Cohansey Formation — very soft, siliceous sand). The mixing of carbonate Valley and Ridge drainage with the soft Pine Barrens and Delaware Highland contributions produces a moderately hard finished supply at the Camden reach. The Delaware River's large flow and significant dilution from multiple sub-basins keeps finished hardness in the moderate range.

At 127.5 mg/L, Camden residents encounter moderate scale accumulation. Faucet aerators and showerheads develop deposits after several months — monthly cleaning with citric acid solution is practical maintenance. New Jersey American Water consistently delivers water meeting all New Jersey DEP and EPA Safe Drinking Water Act requirements.