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Sec. 34-75. - Flow measuring devices. <br />(a) Users contributing twenty-five thousand (25,000) gallons per day of normal domestic <br />wastewater or its equivalent in BOD and/or suspended solids loading and any user having a <br />wastewater contribution permit may be required to provide at the user's cost and expense a <br />device for measuring wastewater flow. Its specifications shall be approved by the city <br />engineer. Users contributing less than twenty-five thousand (25,000) gallons per day have the <br />option of installing an approved flow measuring device. If no flow -measuring device is <br />installed, surcharges will be based one hundred (100) percent of water usage. <br />(b) Any user desiring to have his regular wastewater charges based on less than the percentage <br />return in effect at the time shall install, at his own expense, an approved flow -measuring <br />device or if the user is able to furnish records and amounts of water usage incorporated in final <br />products not returned to the POTW verifiable by the city, he may have his regular wastewater <br />charges based on a percentage return less than that in effect at the time subject to the approval <br />of the city manager. <br />(c) All flow meters and/or devices shall be installed so they may be easily cleaned, serviced, <br />inspected and calibrated and in properly operating conditions at all times. The city may inspect <br />these devices for compliance with this article at its discretion. <br />Sec. 34-76. - Pretreatment. <br />(a) Users shall provide necessary wastewater pretreatment as required to comply with this article <br />and shall achieve compliance with all federal categorical pretreatment standards within the <br />limitations as specified by the federal pretreatment regulations. Any facilities required to <br />pretreat wastewater to a level acceptable to the city shall be provided, operated and maintained <br />at the user's cost and expense. Detailed plans showing the pretreatment facilities and their <br />operating procedures shall be submitted to the city for review, and shall be approved by the <br />city before construction of the facility. The review of such plans and operating procedure will <br />in no way relieve the user from the responsibility of modifying the facility as necessary to <br />produce an effluent acceptable to the city under the provisions of the pretreatment program <br />and the sewer use ordinances. <br />Any subsequent changes in the pretreatment facilities or operating procedures shall be reported to <br />and acceptable to the city prior to the initiation of the changes. <br />(b) The city shall prepare annually a list of industrial users which during the previous twelve (12) <br />months have significantly violated pretreatment requirements as defined in 34-54 <br />(Definitions) of this article regarding significant noncompliance. This list will appear annually <br />in the largest newspaper published in the city during the month of January. Additionally, the <br />compliance status of all significant industrial users for the previous year is summarized in an <br />Page 18 of 45 <br />