The utility at its option for good cause may refuse to accept a check tendered as payment on a customer's account and require payment in cash or other certified funds. Good cause must be justified by a sewerage utility by evidencing a credit history problem or by evidencing insufficient funds of the utility customer or applicant. For the purposes of this regulation, the sewerage utility may not consider indebtedness that was incurred by the customer or any member of the customer's household more than six (6) years prior to the time of application.
S.C. Code Regs. § 103-532.3