S.C. Code Ann. § 48-11-210
(A) The organization and function of each of the following watershed conservation districts which have implemented works of improvement must be revised to comply with this chapter. Each watershed conservation district retains the authority to levy the millage rate for the district, established previously by the General Assembly or through the local creation or administration of the watershed conservation district, at which taxes may be levied each fiscal year on the real property in the district, until the millage rate is changed as provided in this chapter or increased by action of county council. This chapter applies to those districts notwithstanding contrary provisions in acts which may have created the districts. The districts and related acts, where created by separate acts, include: