Haddonfield Water Hardness & Quality Report (2026)

Haddonfield, New Jersey, receives its drinking water from the Haddon Township Municipal Utilities Authority, serving Camden County including Haddonfield borough. The primary sources are multiple groundwater aquifers: the Potomac-Raritan-Magothy (upper, middle, lower), Mount Laurel-Wenonah, and Englishtown aquifer systems. Supplemental surface water comes from the Delaware River. Treatment occurs at local facilities where water is drawn, tested, and processed before distribution to approximately 15,000 residents across a 5-square-mile service area.

The supply originates within the Delaware River watershed, specifically the Coastal Plain physiographic province. Key geological features include unconsolidated to semi-consolidated Cretaceous sediments of sand, gravel, and clay, forming productive aquifers. The Potomac-Raritan-Magothy aquifer, a major multilayered system, overlies the Englishtown and Mount Laurel-Wenonah units, all shaped by ancient river deltas and marine deposits. This geology dissolves alkaline earth minerals during recharge from precipitation and river infiltration, yielding a hard supply with elevated dissolved solids compared to mountainous or glaciated regions.

At this hard water level, scale buildup accelerates in pipes, water heaters, dishwashers, and washing machines, reducing efficiency by up to 30% and shortening appliance life. Faucet aerators and showerheads clog quickly, dropping water pressure. Maintenance involves monthly vinegar descaling for fixtures, annual heater flushes, and installing scale-inhibiting filters. A water softener is recommended to exchange hardness ions, preventing spots on dishes/glassware and dry skin/hair from soap scum. The 2022 Haddon Township Water Quality Report confirms compliance with all EPA standards, including no violations for lead or copper (90th percentile copper 0.4 mg/L, lead 2 ppb). pH averages around 7.5, stable and non-corrosive.