S.C. Code Ann. Regs. 103-770 – Quality of Service.

A. Each utility shall provide water that is potable and, insofar as practicable, free from objectionable odor, taste, color and turbidity. Each utility must have a permit as required by the health laws of the State of South Carolina, and shall comply with all laws and regulations of State and local agencies pertaining to water service.
B. Water Supply.
1. (a) Free from pollution, unless the water is subsequently purified by treatment.
2. (b) Adequate to provide a continuous supply of water.
3. (c) Of such quality as to meet the standards of the South Carolina Department of Health and Environmental Control.
  2) Operation of supply system.
4. (a) The water supply system, including wells, reservoirs, pumping equipment, treatment and filtration works, mains, meters, and service pipes shall be free from sanitary defects.
5. (b) Any physical connection between the distribution system of a public water supply and that of any other water supply must comply with the regulations of the South Carolina Department of Health and Environmental Control.
1) The source of supply shall be:
C. Testing of Water. Each utility shall have representative samples of the water supplied by it examined by the responsible State or local agencies, or by an approved water laboratory, at intervals specified by those agencies in accordance with the standards of the South Carolina Department of Health and Environmental Control.