(A)   The user charge ordinance shall be reviewed not less often than every two years regarding the wastewater contribution of users, the total costs of the operation and maintenance of the treatment works, and its approved user charge system.
   (B)   The charges for users shall be revised to accomplish the following:
      (1)   Maintain the proportionate distribution of operation and maintenance costs among users;
      (2)   Generate sufficient revenue to pay the total operation and maintenance costs necessary to the proper operation and maintenance, including replacement, of the treatment works; and
      (3)   Apply excess revenue collected from users to the costs of operation and maintenance attributable to those users for the review period.
(`90 Code, § 18-51)  (Ord. 2759, passed 1-8-85)