Schererville Water Hardness & Quality Report (2026)

Schererville Water Department serves approximately 30,000 residents across Schererville in Lake County, Indiana. The utility operates surface water supplies purchased from regional sources within the Kankakee River watershed. Water is treated to meet all EPA Maximum Contaminant Level Goals (MCLGs), with current testing showing all contaminants within safe levels according to health-based guidelines. The utility maintains a treatment facility and distribution network across the service area, and can be contacted at 219-712-3491 or at 10 East Joliet Street, Schererville, IN 46375.

The Kankakee River watershed in northwest Indiana overlies Silurian and Ordovician carbonate bedrock—primarily dolomite and limestone formations deposited during the Paleozoic Era. These soluble carbonate rocks naturally contribute dissolved calcium and magnesium ions to both groundwater and surface water supplies. The geological setting produces a hard water supply characteristic of the region, with mineral content shaped by the underlying limestone and dolomite aquifer systems.

At hard water levels, Schererville residents can expect scale buildup on fixtures, reduced soap effectiveness, and mineral deposits in water heaters and appliances. Dishwashers, washing machines, and hot water heaters are typically most affected. Descaling treatments and regular maintenance of appliances are recommended. Many households in the area benefit from point-of-use or whole-home water softeners to reduce scale formation and extend appliance lifespan. Schererville Water Department reports that all current water quality testing meets EPA standards across all contaminants measured.