(a) The following terms as used in this section shall have the meanings ascribed to them as shown:
(1) "Normal domestic sewage" means sewage which when analyzed shows by weight a daily average of not more than 200 milligrams per liter suspended solids and not more than 250 milligrams per liter biochemical oxygen demand (BOD).
(2) "Suspended solids" means solids that either float on the surface of, or are in suspension in water, sewage, or other liquids and which are removable by laboratory filtering.
(3) "BOD" (denoting biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter, under standard laboratory procedure, in 5 days at 20 degrees Centigrade, expressed in milligrams per liter by weight.
(b) Sewage or industrial wastes above normal sewage strength, but acceptable for discharge into the sanitary sewerage system shall be subject to a surcharge. The surcharge shall be determined on the basis of either or both of two constituents of water or wastes:
(1) Total suspended solids, and/or
(2) Five day BOD at 20 degrees Centigrade and as herein provided. When either or both the total suspended solids and the BOD of a water or waste accepted for admission to the system exceeds the values of their constituents for normal sewage, the excess concentration in either or both, as the case may be, shall be subject to a surcharge as follows:
A. Pounds of excess suspended solids per day x $0.438/lb
= Suspended Solids Surcharge
B. Pounds of excess BOD per day x $0.351/lb = BOD
Surcharge
(c) In addition to the surcharge, the user will pay the user charges as defined in Section 925.03.
(d) The pounds of BOD per day and/or pounds of suspended solids per day, above the concentrations previously described for normal strength sewage that are discharged to the sewerage system, shall be determined by the City or their authorized representative.
(e) In addition to a surcharge on BOD and suspended solids, the City shall have the right to surcharge any user for the discharge of any other pollutant into the sewage system.
(Ord. 64-99. Passed 10-19-99.)