Socastee Water Hardness & Quality Report (2026)

Grand Strand Water & Sewer Authority (GSWSA) serves Socastee, an unincorporated community in Horry County, South Carolina, along with surrounding municipalities including Marion, Mullins, Nichols, and Lake View — distributing to over 100,000 customers in the Myrtle Beach area. GSWSA sources water primarily from groundwater wells tapping the surficial aquifer in the coastal plain. Treatment occurs at regional facilities using filtration, disinfection, and basic conditioning before distribution to Socastee and surrounding communities.

The water originates from the local groundwater basin within the Waccamaw River watershed, part of the broader Pee Dee River system draining into the Atlantic. Underlying geology features unconsolidated sands and clays of the Quaternary and Tertiary Coastal Plain, with minor influence from the Black Creek and Socastee Formations (Eocene–Miocene). The absence of significant carbonate rocks like limestone means the aquifer delivers very soft water with low mineral content, shaped by sandy recharge and minimal rock-water interaction.

As a soft water supply, Socastee's water causes no scaling on fixtures, pipes, or appliances, reducing maintenance needs and extending lifespan for water heaters, dishwashers, and laundry machines. No soap scum buildup occurs and cleaning is effortless without hard water spots. A water softener is not recommended and could unnecessarily strip beneficial minerals or add sodium; occasional filter changes for sediment suffice. GSWSA's 2024 Consumer Confidence Reports confirm EPA compliance with no lead, copper, or disinfectant violations; pH typically ranges 7.0–8.0 with no PFAS exceedances, while occasional iron and manganese traces from the aquifer are addressed via aeration and filtration.