S.C. Code Ann. § 6-15-60

The General Assembly confirms the right of any governmental entity to impose upon all those to whom sewer service is rendered, (a) a sewer service charge therefor, which may, in the discretion of its governing body, be sufficient to provide for all or any part of the cost of operating and maintaining the sewer facilities and to provide debt service on bonds or other obligations of the governmental entity issued to provide any type of sewer collection, disposal, or treatment service, and (b) a sewer connection charge, or connection fee or tapping fee designed to adequately reimburse the governing body for effecting the connection to provide sewer service.