Goose Creek Water Hardness & Quality Report (2026)

Goose Creek, South Carolina, in Berkeley County north of Charleston — a rapidly growing Charleston suburban community, the fourth largest city in South Carolina (one of the fastest-growing cities in the state), a major Charleston metro north suburban community, home of the Joint Base Charleston (Charleston Air Force Base and Charleston Naval Weapons Station), and a diverse Berkeley County community in the Charleston low country — draws its municipal water supply from the Cooper River via the City of Goose Creek Water Division. Water hardness in Goose Creek measures 83.5 mg/L — classified as moderately soft.

Goose Creek's moderate softness reflects the Cooper River South Carolina Coastal Plain supply characteristics. The Cooper River at Goose Creek–Berkeley County drains: the South Carolina Midlands and Sandhills (Cretaceous–Eocene calcareous-moderate sandy Coastal Plain formations — the Black Mingo, McBean, and Santee Formations of the South Carolina embayment, moderately calcareous); and the South Carolina Piedmont (Precambrian–Paleozoic calcareous-poor crystalline gneiss — the upper Cooper River watershed calcareous-poor terrain). The City of Goose Creek treatment produces the moderate 83.5 mg/L.

With hardness at 83.5 mg/L, Goose Creek residents enjoy moderately soft water. City of Goose Creek Water Division consistently delivers water meeting all South Carolina DHEC and EPA Safe Drinking Water Act requirements.