Ladson Water Hardness & Quality Report (2026)

Ladson, South Carolina, in Berkeley County — an unincorporated Berkeley County community adjacent to Summerville and Goose Creek in the north Charleston metro — receives its water from the Berkeley County Water Authority, drawing from the Edisto River via Bushy Park Reservoir (Berkeley County) through the north Charleston distribution.

The moderately hard 144 mg/L hardness and TDS of 369 mg/L (TDS elevated relative to hardness — reflecting the Coastal Plain Cretaceous supply's sulfate and sodium from the marine sediment dissolution) reflect the south South Carolina Berkeley County Coastal Plain supply's moderate calcareous character — comparable to other southern South Carolina Coastal Plain communities drawing from similar Cretaceous calcareous formations. The Berkeley County supply at Ladson — Cretaceous Black Creek Formation (slightly calcareous — minor contributor), Tertiary Cooper Marl (calcareous — primary hardness contributor), and Quaternary Coastal Plain alluvium (slightly calcareous — TDS contributor).

At 144 mg/L, Ladson's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 7.9 ppt warrants a certified drinking water filter — Joint Base Charleston (Berkeley County — AFFF) and the north Charleston Berkeley County industrial corridor contribute significantly to Ladson's elevated readings.