Bergenfield Water Hardness & Quality Report (2026)

The Bergenfield Department of Public Works operates the municipal water utility for the Borough of Bergenfield in Bergen County, New Jersey, serving approximately 28,000 residents across a 2.9 square mile service area in the New York metropolitan suburbs. Water is sourced primarily from the Hackensack River via the Oradell Reservoir, managed through the Hackensack Water Supply Company (now part of Veolia North America), supplemented by groundwater wells tapping local aquifers. Treatment occurs at regional facilities including the Hillview Treatment Plant.

The Hackensack River watershed spans the Piedmont physiographic province, draining Triassic-Jurassic sedimentary rocks — including the Lockatong and Brunswick Groups of red beds and basalts — that release minerals into surface flows. Underlying Coastal Plain aquifers feature unconsolidated sands and gravels from Pleistocene glaciation over Cretaceous formations, including the Raritan and Magothy Formations, where prolonged mineral leaching imparts elevated calcium and magnesium. This combination of carbonate-rich bedrock and sedimentary aquifers produces a consistently hard supply.

At hard levels, Bergenfield water causes significant scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan by 30–50%, with white deposits on fixtures and reduced soap lathering. Regular vinegar descaling, scale inhibitors, or a water softener is recommended — softening is particularly advised to protect boilers and extend plumbing durability. The utility meets EPA standards; PFAS monitoring aligns with NJDEP standards, treatment includes filtration, chlorination, and corrosion control, and seven compliance violations recorded since 2023 were primarily minor reporting issues, with pH typically 7–8 and no MCL exceedances for major contaminants.