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A. All commercial units shall be classified into one of the five available SIC Group Classifications for billing purposes. Placement into a SIC Group Classification will be determined by levels of BOD and TSS contained in the commercial unit's wastewater discharge into the public sewer system. The levels of BOD and TSS contained in a commercial unit's wastewater shall be termed to be a measure of the "strength" of the wastewater. The determination of BOD and TSS levels shall be obtained through one of two alternative methods. Those methods are an actual monitoring of the commercial unit's wastewater strength or an estimation of the BOD and TSS levels for the commercial unit based on the best information available.

B. Initial classification of all commercial units into SIC Groups shall be based on an estimation of the levels of BOD and TSS (or strength) contained in the commercial unit's wastewater discharge. All estimates of BOD and TSS levels shall be by means approved by the Department and may be later adjusted.

C. As an alternative, at the customer or property owner's sole expense, the commercial customer may submit a plan for monitoring its wastewater discharge on a regular basis for purposes of determining the strength of its wastewater discharge. All monitoring plans shall be reviewed and approved by the Department prior to implementation. The results of such a monitoring plan shall be taken into account, along with all other available information, when determining a commercial unit's SIC group placement.

D. The Department may monitor the wastewater from any commercial customer to determine the flow, wastewater strength and suitability for treatment at a frequency to be determined by the Department. The results of this monitoring may be used to assess representative wastewater charges or to assure that no wastewater loading changes have occurred at the commercial unit.

(Ord. 2013-25s § 2 (part), 2013)