§ 6-13.702. Pretreatment of industrial and process wastewaters.

The Director may require an industrial wastewater pretreatment facility or device when it is necessary to restrict or prevent the discharge to the sewer of certain waste pollutants or to accomplish any specific pretreatment result required by the Director prior to discharge to the sewer. The Director may also require a pretreatment facility or device when necessary to redistribute any peak discharges of industrial wastewaters over a longer time period. Any facilities necessary for compliance must be provided, operated, and maintained at the user's expense. All pretreatment facilities or devices must be approved by the Director, but such approval shall not absolve the user of the responsibility of meeting any required industrial effluent limitation(s) required. The director may require construction of sewer lines by the user to convey certain industrial wastes to a specific City trunk sewer. All pretreatment facilities judged by the City to require engineering design must have plans prepared and signed by an engineer of suitable discipline and licensed in the State of California a minimum of thirty (30) days prior to the commencement of Discharge. Detailed plans showing the pretreatment facilities and operating procedures, including accidental discharge procedures, must be submitted to the Director for review. The review and approval of such plans and operating procedures by the Director will not relieve the user from the responsibility of modifying the facility in the future, as necessary, to produce an effluent acceptable to the City under the provisions of this Chapter.

A gravity separation interceptor, equalizing tank, neutralization chamber, control manhole, sampling location, or other approved device may be required to remove prohibited settleable and floatable solids, to equalize wastewater streams varying greatly in quantity or quality, to neutralize low or high pH flows, and to facilitate inspection, flow measurement, and sampling.

(§ 1, Ord. 1170, eff. April 21, 2011)