The purpose of this chapter shall be to generate sufficient revenue to pay all costs for the operation and maintenance of the complete wastewater system. The costs shall be distributed to all users of the system in proportion to each user’s contribution to the total loading of the treatment works. BOD, TSS, phosphorus, and volume shall be considered and included as the basis for the user’s contribution to ensure a proportional distribution of operation and maintenance costs to each user or user class. (Ord. 611 § 5, 1998: Ord. 414 § 1, 1982)