The Public Works Director together with the Finance Director shall establish regulations and procedures for making adjustments to the quantity of water and wastewater from which the commodity charges are calculated. These regulations and procedures shall establish the criteria to be used in consideration of an adjustment, the method to calculate the adjustment, and the frequency that adjustments will be considered. The rate to be charged for the adjusted quantity of water for all classifications of accounts shall be the commodity charge for the lowest consumption range of the single-family residential rate for the service area. (Ord. 2321 § 2, 2006: Ord. 1682 § 6 (part), 1992).