Clinton Water Hardness & Quality Report (2026)

The City of Clinton Water Company (Public Water System ID: MS0250003) serves approximately 25,197 residents in Clinton, Mississippi, within Hinds County. Water is sourced exclusively from groundwater via eleven deep wells: seven drawing from the Sparta Aquifer and four from the Cockfield Aquifer. The system includes five elevated storage tanks with a combined capacity of 2.9 million gallons, distributing about 3 million gallons daily through 170 miles of mains. No surface water sources or named treatment plants are detailed, though standard groundwater treatment is implied. Contact can be made at 601-924-5474 or 601-925-6103.

Clinton's water originates from the Sparta and Cockfield aquifers in the Mississippi Embayment, without a defined surface watershed. The Sparta Aquifer is a Paleocene-age sand formation within the Catahoula Formation, while the Cockfield Aquifer belongs to the Eocene Jackson Group, consisting of sands interbedded with clays and carbonates. Carbonate mineral dissolution in these confined sedimentary layers contributes to a hard supply with elevated dissolved solids; the confined nature of the aquifers limits surface contamination while maintaining a mineral-rich chemical profile. Source water assessments by the Mississippi Department of Environmental Quality are available upon request.

Hard water in Clinton causes scale buildup in pipes, hot water heaters, and dishwashers — appliances most affected, often requiring 20–30% more energy to operate. Soap lathering is poor, leaving films on skin, hair, and laundry. Maintenance includes regular descaling of appliances, installing drain screens, and flushing water heaters biannually. A water softener is recommended to mitigate staining, improve cleaning, and extend plumbing life. Reports indicate 4 contaminants above EPA health-based guidelines — including Chloroform, Vanadium, and Dieldrin — with 1 MCL violation and 15 total contaminants noted, including haloacetic acids. Treatment involves groundwater pumping with likely chlorination.