Madison Water Hardness & Quality Report (2026)

The City of Madison Water Utility serves Madison, Mississippi, in Madison County, operating four deep groundwater wells: one drawing from the Cockfield Aquifer and three from the Sparta Aquifer. These aquifers are the sole source of drinking water for the city's service area. The utility treats and distributes water to residential, commercial, and industrial customers throughout the municipality, with treatment processes ensuring compliance with EPA and Mississippi Department of Health standards. The system has no violations and meets or exceeds all Federal and State requirements.

The water supply originates from Tertiary-age aquifer formations underlying Mississippi's coastal plain. The Cockfield and Sparta Aquifers are composed of sand and clay layers rich in dissolved minerals, particularly calcium and magnesium compounds. This geological setting is characteristic of the region and results in naturally mineralised, very hard groundwater. The aquifers' hydrogeology directly determines the hard water chemistry delivered to consumers — a profile typical of Mississippi's coastal plain geology.

Madison's water is classified as very hard, meaning residents and businesses experience significant scale buildup in water heaters, pipes, dishwashers, and washing machines, reducing appliance efficiency and lifespan. Many households and commercial properties benefit from water softening systems — point-of-use or whole-house — to reduce maintenance costs and protect equipment. The utility tested for polyfluoroalkyl substances (PFAS) under the Unregulated Contaminant Monitoring Rule #5 with no detectable levels found, and the system meets or exceeds all Federal and State requirements per the City of Madison's official water quality report.