9.1. SR 02-17-2015 - Laserfiche WebLink

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Sec. 78 -187. - Determination of billable flow, loading and user charge. (a) Basis. Each user shall pay operation, maintenance and replacement costs in proportion to the user's proportionate contribution of wastewater flows and loadings to the treatment plant, with the minimum rate for loadings of BOD and TSS being the rate established for a concentration of 200 milligrams per liter BOD and 250 milligrams per liter TSS (i.e., normal domestic strength wastewater). Those industrial users discharging segregated normal domestic strength wastewater only can be classified as commercial users for the purpose of rate determination. (b) User charges for normal domestic strength users. (1) Calculation of billable flows and loadings. The charges assessed domestic users and those of other classes connected to the city's water utility and discharging normal domestic strength wastewater shall be established proportionately according to billable wastewater volume. Billable wastewater volume shall be calculated as follows: a. Measurement of wastewater volume for domestic users. Domestic users connected to city water utility. Except as provided for in this division, billable wastewater volume for residential users shall be calculated on the basis of metered water usage. Direct read or deduct meters are available at customer's Expense with w/City n4g434t _ approval. r usage s"aroe be -date �bap,-Qi--GeP,-JaRuap�,,—F--bf . Usage in excess of the minimum rate will be billed on a unit cost of 1,000 gallons per month. 2. Domestic users not connected to city water utility. The charges assessed to residential users who are not connected to the city's water utility shall be established as a flat rate per month based on the average water use of metered residential users in the community. The city reserves the right to require residential users to install water meters for the purpose of determining billable wastewater volume. b. Measurement of wastewater volume for nondomestic users. The charges assessed nondomestic users discharging normal domestic strength wastewater shall be established proportionately according to billable wastewater volume. Billable wastewater volume shall be calculated as follows: The billable wastewater volume of nondomestic users may be determined in the same manner as for residential users connected to the city's water utility, except that if the city determines that there are significant seasonal variations in the metered water usage of nonresidential users resulting in a proportionate increase or decrease in wastewater volume, then billable wastewater volume shall be calculated on the basis of monthly metered water usage recorded throughout the year, or calculated on the basis of wastewater flow meters. The city may, at its discretion, require nondomestic users to install, at the user's expense, a water meter, or such additional water meters or wastewater flow meters as may be necessary to determine billable wastewater volume. c. Determination of loadings for normal domestic strength users. The billable amounts of BOD and TSS will be calculated from the volume of metered water usage, as determined pursuant to this section, where the billable quantities will be those attributable to wastewater at a concentration of 200 milligrams per liter BOD and 250 milligrams per liter TSS (i.e., normal domestic strength wastewater). d. Determination of loadings for nondomestic strength users. The city may, at its discretion, require nondomestic users to install a sewage monitoring facility. Each industrial user required by the city to install and maintain sewage monitoring facilities shall submit to the city a monthly report of daily flow and BOD on a form approved by the city. This report shall be used for billing purposes and shall be submitted prior to the 15th day of the subsequent Page 1