Glens Falls Water Hardness & Quality Report (2026)

Glens Falls draws its water from the Hudson River, a significant waterway originating in the Adirondack Mountains and flowing south through the Hudson River Valley. This surface water is treated at the city's municipal filtration plant, which employs conventional methods like coagulation, sedimentation, filtration, and disinfection. The Glens Falls Water Department serves over 14,000 residents across the city, including areas near City Park and Crandall Park. The watershed supplying Glens Falls includes upstate New York reservoirs and mountain runoff before the water reaches the intake point.

The geology feeding the Hudson River is varied, beginning with Precambrian crystalline rocks in the Adirondacks and transitioning to Paleozoic sedimentary formations downstream, which include shales, sandstones, and some limestones. This geological mix results in a soft water profile for Glens Falls. The bedrock in the upper watershed is predominantly non-carbonate, releasing minimal hardness-causing minerals like calcium and magnesium into the river. Dilution from rainfall and other soft water sources further contributes to the naturally low mineral content of this surface water supply.

Residents may notice that soft water helps soap and detergents lather more easily, reducing the amount needed for cleaning. You'll also find less spotting on glassware and a cleaner feel after bathing. Appliances like water heaters, dishwashers, and washing machines benefit from the absence of scale buildup, potentially extending their lifespan and reducing maintenance. While a water softener isn't necessary, occasional cleaning with vinegar can address any sediment or biofilm. However, recent testing did reveal 13 contaminants, with 8 exceeding health guidelines, including chromium-6 and PFAS compounds, which pose long-term exposure risks.