S.C. Code Ann. § 48-11-180

The owner of lands which have not and cannot be benefited by their inclusion in the watershed conservation district may petition the commissioners of the soil and water conservation district to have the lands detached. The petition must describe the lands and state the reasons why they should be detached. A hearing must be held by the commissioners within thirty days after the petition is filed. Due notice of the hearing must be given by the commissioners. If it is determined by the commissioners that the lands must be detached, the determination must be certified to the county auditors of the counties involved for recording.