(A) The city shall determine the total estimated costs of administration and of operation and maintenance for the ensuing year which are necessary to maintain the capacity and performance during the service life of the treatment works, for which the works were designed and constructed.
(B) These costs shall be determined as two separate items of expense:
(1) Those costs associated as administrative shall include debt service, billing, meter reading, administrative and general costs, including the salary of the Waste Water supervisory staff; and
(2) Those costs associated as operation and maintenance of the waste water system shall include but need not be limited to labor, repairs, equipment replacements, maintenance, necessary modifications, power, chemicals and materials, sampling and laboratory testing, studies and reports by special consultants, principal and interest of bonds payable from revenues of the waste water system, and an adequate reserve fund.
(C) The total estimated annual cost associated with operation and maintenance shall be allocated by percentage to each of 4 parameters, namely: Flow (volume) 45%, biochemical oxygen demand (BOD) 15%, total suspended solids (TSS) 20%, and total Kjendahl nitrogen (TKN) 20%.
(D) BOD used hereinafter in this subchapter shall mean 5-day, 20°C biochemical oxygen demand under standard laboratory procedure. The percentage allocation for each parameter shall be reviewed periodically and adjusted if necessary.
(1975 Code, § 25-95) (Ord. 765, passed 7-2-1979; Am. Ord. 1332, passed 10-19-2015)