Kearns Water Hardness & Quality Report (2026)

Kearns, Utah, an unincorporated community in Salt Lake County — a major west Salt Lake County community (Kearns is a significant west Salt Lake County unincorporated community, originally developed as World War II housing for workers at Kearns Army Air Base — one of Utah's most historically significant WWII installations), home of the Utah Olympic Oval (the Kearns Olympic Oval hosted the speed skating events for the 2002 Salt Lake City Winter Olympics — the 'Fastest Ice on Earth' due to the thin high-altitude air at 4,600 feet elevation, where several world records were set), a diverse Salt Lake County community with a significant Latino-American and Pacific Islander-American population, and a major west Salt Lake Valley residential community — draws its municipal water supply from the Wasatch Front watershed via the Salt Lake Valley Water Conservancy District. Water hardness in Kearns measures 153.5 mg/L — classified as moderately hard.

Kearns's moderate hardness reflects the west Salt Lake Valley watershed's calcareous Wasatch Front geology and the SLVWCD's treatment. The Wasatch Front watershed supply (Knox Dolomite, Madison Limestone — highly calcareous, typical raw hardness 300–400 mg/L) is treated by the Salt Lake Valley Water Conservancy District, which applies more effective lime softening than the Jordan Valley Water Conservancy District, reducing hardness to the moderate 153.5 mg/L in the Kearns distribution zone.

At 153.5 mg/L, Kearns residents encounter moderate-to-hard scale accumulation. Monthly cleaning with citric acid solution is recommended. Salt Lake Valley WCD consistently delivers water meeting all Utah DWQ and EPA Safe Drinking Water Act requirements.