Guttenberg Water Hardness & Quality Report (2026)

Guttenberg, New Jersey's water supply is managed by SUEZ Water New Jersey, which draws from the Hackensack River and Wanaque Reservoir. The Little Falls treatment plant processes water from the river, while the Wanaque Water System handles the reservoir supply. These surface water sources serve over a million people across many towns, with the utility conducting nearly 50,000 tests annually to ensure quality. While no lead mains are present in the distribution system, homeowners should be aware that customer service lines might contain lead. The Hackensack and Wanaque watersheds are geologically diverse, spanning the Piedmont province and resting on Triassic sedimentary rocks of the Newark Supergroup alongside metamorphic basement rocks from the Highlands. Glacial deposits and fractured bedrock aquifers, such as the Passaic Formation, also influence the water. These geological features naturally impart moderate mineralization to the raw surface water. However, the extensive treatment processes employed by SUEZ effectively reduce these minerals, resulting in very soft finished water.

Scale buildup won't be a major concern for your appliances with this very soft water, meaning your water heaters, dishwashers, and pipes should be well-protected from mineral deposits. You won't need a home water softener, so you can skip the potential issues like that slippery feeling some people dislike or the challenges with soap scum. Basic maintenance, like changing filters and flushing sediment, should be sufficient. If you do notice any white residue, it's probably not from water hardness. A simple vinegar test can help determine if it's calcium carbonate – it will foam. Alternatively, check your water heater for any particles from the dip tube. While the water generally meets EPA standards, there have been a few violations and some contaminants detected above health guidelines. SUEZ treatment plants do not release lead, but flushing your cold taps for a couple of minutes before use is a good practice to minimize any potential lead from your home's plumbing. Filters certified for PFAS removal are also recommended.