Picayune Water Hardness & Quality Report (2026)

Picayune Utilities supplies drinking water to Picayune, Mississippi, in Pearl River County. The entire water supply originates from groundwater wells that tap the Pascagoula Aquifer, a significant aquifer system beneath southeastern Mississippi. Picayune's water is disinfected with chlorine at the point of distribution, and fluoride levels are maintained at the Mississippi State Department of Health's recommended range of 0.6–1.2 mg/L. Unlike many systems, Picayune does not use a conventional treatment plant. The Pascagoula Aquifer is composed of Tertiary-age sedimentary formations typical of the Gulf Coastal Plain. As groundwater travels through these deposits, it dissolves abundant minerals, notably calcium and magnesium carbonates and bicarbonates, from the surrounding sediments. This geological makeup is common for coastal plain aquifer systems and naturally results in hard water throughout the region, aligning with the statewide average for Mississippi.

Homeowners in Picayune might notice scale buildup on appliances like kettles, water heaters, and dishwashers, and may find that soaps don't lather as effectively. To combat these effects and extend the lifespan of water-using appliances, regular descaling is advised. For households with significant water use or sensitive equipment, installing a water softener is a worthwhile consideration. The Picayune Utilities system has a strong compliance record, reporting no violations of federal or state drinking water standards in its 2023 and 2024 reports. Fluoride levels are consistently kept within the acceptable parameters, and the system adheres to all EPA and state requirements. More detailed information on Cryptosporidium monitoring and other microbiological contaminant data can be obtained by contacting the Safe Drinking Water Hotline at 1-800-426-4791. For direct inquiries, Ronnie Spiers can be reached at 601-916-1528.