(A) The rate for user charges shall be based on the following formula:
UC = UCv + UCq |
UC - VcVu + BcBu + ScSu |
The symbols used in the above formula are defined as follows: UC = Annual user charge |
Vc = Annual operation and maintenance cost for treatment of a unit of wastewater volume |
Vu = Annual volume contribution from a user |
Be = Annual operation and maintenance cost for treatment of a unit of biochemical oxygen demand (BOD) |
Bu = Annual BOD contribution from a user |
Sc = Annual operation and maintenance cost for treatment of a unit of suspended solids |
Su = Annual suspended solids contribution from a user |
(B) When a user or user class discharges wastewaters other than normal sewage, as defined in § 53.035, a surcharge shall be imposed to cover any added costs of collection and treatment. If the discharge contains BOD or suspended solids in excess of normal sewage, Bu and Su for the base user charge formula shall be adjusted. If any other identifiable pollutant is increasing the cost of treatment, the following term shall be added to the base formula: + PcPu. Pc is defined as O and M cost for treatment of any pollutant. Pu is defined as total contribution of any pollutant from a user per unit of time.
(Ord. 345, passed 3-21-2013)