S.C. Code Ann. Regs. 103-560 – Utility Inspection and Test.

A. Each utility shall adopt a program of periodic tests, inspections, and preventive maintenance designed to achieve and maintain efficient operation of its system and the rendition of safe, adequate and continuous service.
B. Each utility shall maintain or have access to test facilities enabling it to determine the operation and collecting capabilities of all equipment and facilities provided by the utility. These test facilities shall be sufficient for routine maintenance and for trouble location. The actual collection performance of each sewerage system shall be monitored regularly in order to determine if the established objectives and operating requirements are met.