Lumberton Water Hardness & Quality Report (2026)

New Jersey American Water provides Lumberton Township's water supply through its Mount Holly system. The utility draws from numerous groundwater wells that tap into the Cohansey-Kirkwood aquifer, located within the New Jersey Coastal Plain. Water undergoes treatment at wellhead facilities, involving aeration, filtration, chlorination, and corrosion control before it's distributed to around 100,000 customers across several South Jersey communities, including Mount Holly, Lumberton, and Westampton. This supply originates in the Mullica River watershed's groundwater sub-basin, where Pleistocene and Tertiary sands lie atop Cretaceous clays.

The geology beneath Lumberton is characterized by the unconfined Cohansey Formation, composed of Miocene sands, and the confined Kirkwood Formation. These formations serve as the primary aquifers, channeling water through strata naturally rich in minerals. This prolonged contact with calcareous sands and shell fragments is what gives the water its characteristically hard quality. It means dissolved solids are elevated when compared to surface water sources or supplies from northern New Jersey.

This moderate hardness can lead to noticeable limescale buildup in appliances like dishwashers, washing machines, and water heaters, potentially shortening their lifespan and reducing efficiency. You might also find faster scaling in boilers and coffee makers, making regular descaling with vinegar or citric acid a good idea. Soap scum forms more readily, so you'll likely need to use more detergent for laundry and dishes. Many households find that installing a water softener significantly extends appliance life and improves cleaning results. The utility ensures the water meets all federal and state drinking water standards, with pH adjusted between 7.5 and 8.5 for corrosion control and trace naturally occurring iron and manganese filtered out.