S.C. Code Regs. 103-531.1. Amount of Deposit

A. A maximum deposit may be required up to an amount equal to an estimated two (2) months (60 days) bill for a new customer or a maximum deposit may be required up to an amount equal to the total actual bills of the highest two (2) consecutive months based on the experience of the preceding twelve (12) months or portion of the year, if on a seasonal basis.

B. All deposits may be subject to review based on the actual experience of the customer. The amount of the deposit may be adjusted upward or downward to reflect the actual billing experience and payment habits of the customer.