D'Iberville Water Hardness & Quality Report (2026)

The City of D'Iberville Public Water System, serving around 15,000 residents in Harrison County, Mississippi, draws its primary supply from municipal wells. These wells tap into the Graham Ferry Aquifer, a significant groundwater source. The system also receives supplemental water from the Harrison County Utility Authority, which also relies on regional groundwater. D'Iberville doesn't operate surface water treatment plants; instead, wellhead treatment, including disinfection, is employed. The service area encompasses the city itself and adjacent unincorporated regions in northern Harrison County. Residents with inquiries can contact the utility directly at 228.365.3195.

The Graham Ferry Aquifer, part of the Pascagoula Groundwater Basin in southern Mississippi's Coastal Plain, receives recharge from precipitation filtering through Quaternary sands and Tertiary clastic sediments. Water moves laterally through the Miocene Hattiesburg and Pascagoula Formations, which are primarily sands with interbedded clays and limestones. These geological layers naturally dissolve calcium- and magnesium-bearing minerals, contributing to a hard water supply with elevated mineral content. The aquifer's confinement by overlying clays helps shape its moderately mineralized to hard character.

Hard water in D'Iberville can lead to scale buildup in pipes, water heaters, and dishwashers, impacting their efficiency and lifespan. You might notice crusty deposits on faucets, stiffer laundry, and poorer soap lathering, which can contribute to skin dryness. Appliances like boilers, coffee makers, and washing machines are particularly susceptible. To manage scale, consider cleaning faucet aerators monthly with vinegar and flushing water heaters annually. Installing a water softener is generally recommended for supplies like this to prevent scaling and extend the life of your household appliances.