(a) The base unit charge for sewer usage shall be computed by apportioning total system operating costs to all users on the basis of volume of water usage or wastewater discharge as required in Section 925.05, providing that all users of the system discharge normal strength wastewater as defined herein. When BOD, suspended solids or other pollutant concentrations from a user exceeds the range of these pollutants in normal strength wastewater, a surcharge shall be added to the base charge in the manner provided in Section 925.06.
(b) Total system operating costs shall include operation, maintenance, equipment replacement and debt service for the Wastewater Disposal Treatment Works, plus all administrative costs allocable to these operations, plus all regularly scheduled, routine administration, operation, maintenance, equipment replacement, monitoring, surveillance, analysis and debt service.
(c) Pursuant to regulations promulgated under the Act, user charges shall be computed only in accordance with the model below:
Ct (Vu) Cu = Vt |
where
Cu = a user's sewer charge per billing period.
Ct = total annual wastewater system operating costs.
Vt = total annual wastewater contribution in 1000 gal.
Vu = a user's total water usage or wastewater discharge in 1000 gal. per billing period.
Ct/Vt - unit cost of sewer service in $/1000 gal.
(Ord. 46-84. Passed 9-25-84.)