If the district discovers that a billing error has been made related to meter reading against a customer’s account, the district will immediately take all reasonable steps to correct the billing. If the customer has been underbilled, the district reserves the right to go back 12 months to recalculate the amount due and payable and the general manager may provide for reasonable payment arrangements for the balance due to be paid. If the district has overbilled the customer, the district shall go back no longer than 12 months to recalculate the amount of overbilling refund due to the customer. (Ord. 1399.16 § 6-3, 2023)