Orange Water Hardness & Quality Report (2026)

The Orange Water Department serves the City of Orange in Essex County, New Jersey, providing water to approximately 30,000 residents across a 2.2 square mile urban area. The primary sources are municipal wells, including deep and shallow groundwater wells located within the city and nearby areas. Water is treated at the department's facilities — using disinfection (chlorination), corrosion control, and basic filtration — before distribution through the local pipeline network. No surface water reservoirs or rivers are used; the supply is entirely groundwater-based.

Orange's groundwater supply originates from the local aquifer system in the Newark Basin. This basin features Triassic-age sedimentary rocks of the Brunswick Formation (sandstones, shales, and mudstones) overlain by unconsolidated Quaternary glacial sands and gravels. The geology imparts a very hard character to the water due to natural dissolution of calcium- and magnesium-rich minerals from limestone inclusions and dolomitic sediments during groundwater recharge and flow through fractured bedrock — typical for Piedmont-region wells in northern New Jersey.

Very hard water in Orange leads to significant scale buildup in plumbing, reducing pipe flow efficiency, and heavily affects hot water heaters, dishwashers, washing machines, and showerheads with white mineral deposits. Faucet aerators clog frequently and soap lathering is inefficient, requiring more detergent. Maintenance tips include monthly vinegar soaks for aerators and fixtures, annual hot water heater flushing, and using scale-inhibiting filters. A water softener is highly recommended for households. The system complies with EPA lead and copper rules; annual CCR reports confirm no violations for bacteria, nitrates, or disinfectants, with full details in the 2024 CCR.