(a) The following terms shall have the meanings ascribed to them as shown:
(1) “Normal sewage” means sewage which when analyzed shows by weight a daily average of not more than 225 parts per million of suspended solids, and not more than 225 parts per million of 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” (biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter, under standard laboratory procedure, in five days at twenty degrees centigrade, expressed in parts per million 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 the water or wastes:
(1) Total suspended solids; and/or
(2) Five-day BOD at twenty degrees centigrade and as herein provided.
(Ord. 18(80-81). Passed 8-25-80.)
(c) 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:
(1) Pounds of excess suspended solids per day x $1.99/lb. = suspended solids surcharge; and
(2) Pounds of excess BOD per day x $0.261/lb. = BOD surcharge.
(Ord. 68(96-97). Passed 12-15-97.)
(d) In addition to the surcharge, the user will pay the user charges as defined in Section 935.02.
(e) 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 its authorized representative.
(f) 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 or for any other reason that it deems necessary and appropriate, such as excessively high rates of discharge.
(Ord. 18(80-81). Passed 8-25-80.)
(Ord. 18(80-81). Passed 8-25-80.)
(g) The Safety-Service Director and the Finance Director jointly may, between January 1st and March 31st of each year hereafter, make additional annual adjustments of the above sewer rates, without further legislation or approval by City Council in an amount necessary to anticipate the revenue necessary to meet the following year’s income requirements to operate the Sewer Department, based upon the income and expenses of the previous year. Such additional rate increases, however, may be no more than four percent (4%) from the previous year’s rates. (Ord. 68(96-97). Passed 12-15-97.)