S.C. Code Ann. § 50-21-142
There is established a no wake zone on a portion of the Cooper River lying between Bushy Park and Moncks Corner, beginning at channel marker 13 near or in the vicinity of Pimlico Plantation and running to the water check station near or in the vicinity of Bluff Plantation. The boundaries for this no wake zone must be clearly marked by signs designed and installed by the department.