Goose Creek Water Hardness & Quality Report (2026)

The City of Goose Creek Public Works Department (SC0810004) provides drinking water to residents in Goose Creek, Berkeley County, South Carolina. The utility sources raw water from Lake Moultrie, treated by the Santee Cooper Regional Water Supply System, which operates a 40 million gallon per day treatment plant and 26 miles of pipeline. Distribution serves the city and surrounding areas in the Charleston metro region. No violations were reported in the 2023 Consumer Confidence Report, with the system meeting all federal and state standards. Water is treated via coagulation, sedimentation, filtration, and disinfection at the Santee Cooper plant.

Lake Moultrie lies in the Catawba-Santee watershed, draining from the Piedmont through the Fall Line into the Coastal Plain. The geology includes Coastal Plain sediments—sands and clays from the Black Mingo and Cooper Formations (Tertiary)—overlying fractured crystalline rock aquifers upstream. This shapes a soft water character, with low mineral content from rainwater infiltration through sandy soils and limited rock weathering in low-carbonate sediments, avoiding the high alkalinity seen in limestone-dominated basins.

As a soft water supply at 25 mg/L, Goose Creek water poses minimal risk of scale buildup in pipes, water heaters, or dishwashers, reducing maintenance needs. Soap and detergent efficiency is high without excess suds or residue. A water softener is not recommended, as it could overly strip beneficial minerals and increase sodium levels unnecessarily. Lead and copper rule compliance is maintained through corrosion control. No specific PFAS data noted; general contaminants like disinfection byproducts remain below guidelines, and the system carries no MCL violations per the 2023 CCR.