Millville Water Hardness & Quality Report (2026)

Millville Water Department serves Millville, New Jersey, located in Cumberland County in the southern part of the state. The utility operates a groundwater-based system drawing from multiple wells at depths ranging from 120 to 320 feet. Water is treated using air stripping and disinfection with chlorine as the primary disinfectant. According to the utility's own assessment, water quality is very good and the treatment process produces exceptional drinking water.

The Millville water supply originates from the New Jersey Coastal Plain aquifer system, which consists primarily of Quaternary and Tertiary unconsolidated sand and gravel deposits overlying Cretaceous clay and sand formations — typical of southern New Jersey's hydrogeology. Groundwater naturally contains dissolved minerals from these sedimentary formations, contributing to moderate mineralization and the overall water chemistry and mineral profile of the supply.

Millville's groundwater supply exhibits moderate mineralization characteristic of Coastal Plain aquifers. Residents may observe some scale buildup in appliances and fixtures over time; some households may benefit from point-of-use treatment or a water softener, particularly for high-temperature applications such as water heaters and dishwashers. As of the 2026 water quality reporting period, five contaminants above EPA health-based guidelines (MCLGs) have been identified; the utility employs air stripping to remove volatile organic compounds and chlorine disinfection for microbial safety. Residents should consult the annual Consumer Confidence Report for detailed contaminant levels, compliance status, and specific treatment recommendations.