S.C. Code Ann. § 58-11-857: No interference with existing infrastructure, equipment, or service.

An applicant in the ROW must not install, maintain, modify, operate, repair, or replace any small wireless facilities, support structures, or poles in a manner that interferes with any existing infrastructure, equipment, or service including, but not limited to, infrastructure, equipment, or service used to provide communications, electric, gas, water, sewer, or public safety services.