§ 52.041 ADDITIONAL PRETREATMENT MEASURES. 
   (A)   Whenever deemed necessary, the Superintendent may require industrial users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage waste streams from industrial waste streams and such other conditions as may be necessary to protect the POTW and determine the industrial user’s compliance with the requirements of this chapter.
   (B)   Each person discharging into the POTW greater than 25,000 gallons per day or greater than 5% of the average daily flow in the POTW, whichever is lesser, shall install and maintain, on his or her property and at his or her expense, a suitable storage and flow control facility to insure equalization of flow over a 24-hour period. The facility shall have a capacity for at least 100% of the daily discharge volume and shall be equipped with alarms and a rate of discharge controller, the regulation of which shall be directed by the Superintendent. A wastewater discharge permit may be issued solely for flow equalization.
   (C)   Grease, oil and sand interceptors shall be provided when, in the opinion of the Superintendent, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand, except that such interceptors shall not be required for residential users. All interception units shall be of type and capacity approved by the Superintendent and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned and repaired regularly, as needed, by the owner at his or her expense.
   (D)   Industrial users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
   (E)   At no time shall two readings on an explosion hazard meter at the point of discharge into the POTW or at any point in the POTW be more than 5% nor any single reading over 10% of the lower explosive limit (LEL) of the meter.
(Ord. 99-26, passed 9-13-99)