(A) Customers discharging industrial wastes into the city’s sanitary sewer system may be subject to surcharges that reflect the additional treatment demands of industrial wastes. Therefore, the amount of an industrial waste customer’s bill may depend upon the character and concentration of the wastes discharged as well as the quantity. Charges will be in accordance with the schedule of rates set forth in § 18-111 of this chapter.
(B) The volume of flow used in determining the total discharge of industrial wastes shall be based upon metered water consumption as shown in the records of meter readings maintained by the Administrator.
(C) In the event that a person discharging wastes into the sanitary sewers produces evidence satisfactory to the Administrator that more than 10% of the total volume of water used for all purposes does not reach the sanitary sewers, then the Administrator and the customer may agree to use an estimated percentage of total water consumption as a basis for calculation of sewer use charges. Alternatively, the city may agree to authorize on such premises an additional water meter through which water passes that is not returned to the city’s sewer system and to charge only a water service fee for this water (and not a sewer service fee).
(D) Where a person discharging industrial wastes into the public sewers procures all or any part of his or her water supply from sources other than the city, the person so discharging such waste shall install and maintain, at his or her own expense, water meters of a type approved by the Administrator for the purpose of determining the proper volume of industrial waste discharged to such sewers.
(2011 Code, § 18-180)