§ 18-182. Additional pretreatment measures.

(a)

Whenever deemed necessary, the director of utilities may require industrial users to restrict their discharge during peak flow periods, designated that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage wastestreams from industrial wastestreams, and such other conditions as may be necessary to protect the POTW and determine the industrial user's compliance with the requirements of this article.

(b)

Each person discharging into the POTW greater than ten (10) percent of the average daily flow in the POTW, shall install and maintain, on his property and at his expense, a suitable storage and flow control facility to insure equalization of flow over a twenty-four-hour period. The facility shall have a capacity for at least twenty (20) percent 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 director of utilities. 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 director of utilities, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interception units shall be of type and capacity approved by the director of utilities and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned, and repaired regularly (at least twice per year), as needed, by the owner at his 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 (2) readings on an explosion hazard meter at the point of discharge into the POTW, or at any point in the POTW, be more than five (5) percent nor any single reading over ten (10) percent of the lower explosive limit (LEL) of the meter.

(Ord. No. 10-03-01, 3-15-2010)