Cayce Water Hardness & Quality Report (2026)

The City of Cayce Utilities Department supplies water and sewer services to Cayce, South Carolina, a community in Lexington County near Columbia. Their main treatment facility, the City of Cayce Water Treatment Plant, monitors water quality throughout the year, as outlined in their annual report. While specific source details like river or aquifer names aren't readily available, the system provides essential water to local residents. For emergencies during business hours, contact (803) 550-9542.

The water supply is influenced by the Atlantic Coastal Plain geology, characterized by unconsolidated sediments such as sands, clays, and gravels from the Tertiary and Quaternary periods, including formations like the Black Mingo and Congaree. Groundwater from shallow aquifers, such as the Surficial Aquifer System, contributes to the very soft water profile. This softness results from minimal mineral dissolution in silica-rich, low-carbonate sediments. Any surface water sources would likely originate from watersheds like the Congaree River basin, where limited contact with limestone keeps overall mineralization low.

Because the water is soft, you'll find minimal scale buildup, which helps protect appliances like water heaters, dishwashers, and washing machines from significant calcium deposits. You'll also notice that soap and detergents work more efficiently, requiring less product and leaving fewer residues on dishes or laundry. A water softener isn't necessary and isn't recommended, as over-softening could unnecessarily introduce sodium. Instead, focus maintenance on periodic filter cleaning and checking pipes for potential corrosion due to the water's low mineral buffering capacity. The 2024 City of Cayce Water Treatment Plant Annual Water Quality Report confirms compliance with Safe Drinking Water Act standards.