S.C. Code Ann. § 6-24-260

A joint agency formed by governmental entities which themselves possess the power of eminent domain for the purpose for which the joint agency was formed possesses the power of eminent domain within the jurisdictional limits of its members in accordance with Sections 5-7-50 and 4-29-30 or other provision of law as may be applicable so as to effectuate the purposes of this chapter and may exercise the power as provided in Title 28.