River Edge Water Hardness & Quality Report (2026)

The River Edge water supply, managed by New Jersey American Water's River's Edge system, serves Bergen County including River Edge Borough. Residents receive a mixed supply drawn from surface water sources like the Hackensack River and Oradell Reservoir, augmented by groundwater from local aquifers. Treatment takes place at facilities such as the Oradell Water Treatment Plant. This operation pumps and treats millions of gallons annually to serve approximately 10,000 residents across 2.5 square miles, ensuring safe drinking water for the community.

The water's journey begins within the Hackensack River watershed, a 500-square-mile area that collects water from the Watchung Mountains. Geologically, the region is characterized by glacial till and sands from the Pleistocene era. These overlie Cretaceous Potomac Group formations, specifically the Potomac-Raritan-Magothy aquifer system. Dissolution of nearby dolomitic limestones, combined with these sedimentary layers, naturally contributes to the water's hard character, increasing its mineral content through leaching.

This level of hardness can lead to moderate scale buildup in household pipes, water heaters, and dishwashers, potentially reducing their efficiency and lifespan. You might notice dingy laundry or soap scum forming on fixtures. Homeowners often find that boilers and faucets are particularly affected. Regular descaling with vinegar and annual flushing of water heaters can help manage this. For households aiming to prevent spotting and extend appliance life, a water softener is often recommended by the utility. New Jersey American Water confirms compliance with federal standards and maintains optimal corrosion control, with no reported lead or copper issues.