§ 51.041 ADDITIONAL PRETREATMENT MEASURES.
   (A)   Whenever deemed necessary, the Director may require industrial users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only to specific sewers or waste streams, 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 0.4 MAD (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 ensure equalization of flow over a 24-hour period.
   (C)   Grease, oil and sand interceptors shall be provided when, in the opinion of the Director, 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 Director 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 (LED) of the meter.
(1960 Code, § 38-14-15) (Ord. 5677, passed 12-16-1996; Am. Ord. 8173-2018, passed 2-21-2018)