Any system subject to the requirements of this regulation shall retain on its premises original records of all sampling data and analyses, reports, surveys, letters, evaluations, schedules, Department determinations, and any other information required by R.61-58.11.C through R.61-58.11.J, R.61-58.11.L, R.61-58.11.N, and R.61-58.11.O. Each water system shall retain the records required by this section for no fewer than twelve (12) years.
S.C. Code Regs. § 61-58.11.M