S.C. Code Ann. § 5-31-420

In case the owner of a any land situate within the corporate limits and desired by a municipal corporation for any of the purposes referred to in SECTION 5-31-410 or (b) any land desired by the corporation for enlarging, extending, or establishing a sewerage system or a water system within or without the corporate limits shall refuse to sell it, the municipal corporation may condemn the land in the manner provided in the Eminent Domain Procedure Act (Chapter 2 of Title 28).