New South Memphis Water Hardness & Quality Report (2026)

Memphis Light, Gas and Water Division (MLGW) is the primary utility serving New South Memphis, Tennessee, within Shelby County. Drinking water is sourced entirely from the Memphis Sand Aquifer (also known as the Sparta Aquifer), a deep groundwater formation with no surface water component. Multiple well fields pump raw groundwater, which receives minimal treatment — primarily disinfection and corrosion control — at MLGW facilities. The service area covers the urban neighborhoods of New South Memphis along the Mississippi River.

The Memphis Sand Aquifer occupies the subsurface of the Mississippi Embayment, comprising Eocene-age sands and gravels overlying clays, with recharge from upland rainfall percolating through overlying strata. The geology features quartz sands associated with limestone and shell fragments that dissolve calcium and magnesium, imparting a hard supply character through elevated dissolved minerals. Water levels sit approximately 100 feet below ground surface in Shelby County; the deeper Fort Pillow Aquifer is tapped by some wells but the Memphis Sand dominates municipal use.

At hard water levels, scale buildup is significant in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Boilers and fixtures may require frequent descaling. Install sediment filters, flush hot water heaters annually, and use vinegar soaks on faucets to manage deposits. A whole-house water softener is recommended to prevent spotting on dishes and glassware, soap scum, and appliance damage. Groundwater is typically near-neutral pH; treatment is basic chlorination with aeration or blending for iron and manganese control as needed.