Schererville Water Hardness & Quality Report (2026)

Schererville, Indiana, in Lake County — a major northwest Indiana Chicago suburban community (Schererville is a significant Lake County town — a northwest Indiana suburb in the I-65 and US-30 corridor south of Hammond and adjacent to St. John; Schererville is one of the growing northwest Indiana Chicago suburban communities, known for its significant retail development along US-30 (the Lincoln Highway — one of the most important historic transcontinental highways in the United States; the Lincoln Highway corridor through northwest Indiana is one of the most significant retail strips in Lake County)), a diverse Lake County community with a primarily working-class, Polish-American, and suburban family population, adjacent to St. John and Dyer in the south Lake County corridor, home of significant northwest Indiana retail development along the Lincoln Highway, and a growing Lake County community — draws its municipal water supply from the Silurian Dolomite aquifer via the Town of Schererville Water Division. Water hardness in Schererville measures 181.5 mg/L — classified as hard.

Schererville's hard supply reflects the Lake County northwest Indiana Silurian dolomite aquifer's calcareous character. The Niagaran Dolomite aquifer at Schererville draws from the Silurian Niagaran Dolomite (calcareous). Town of Schererville applies limited softening, producing the hard 181.5 mg/L.

At 181.5 mg/L, Schererville residents face regular hard water challenges. Monthly descaling and water softeners are recommended. Town of Schererville Water Division consistently delivers water meeting all Indiana DEM and EPA Safe Drinking Water Act requirements.