S.C. Code Ann. § 3-7-190

No provision of this article shall be construed to relieve any political subdivision of this State, in the absence of an agreement for payment of sums in lieu of taxes by the United States as provided in this article, of the duty of furnishing for the benefit of a project all services which the political subdivision usually furnishes to property in, and persons residing within, the political subdivision without a payment in lieu of taxes.