§ 6-13.711. Gas monitoring and wastewater diversion facilities.

Upon written notification by the Director, users of toxic or flammable substances or users subject to discharges of toxic or flammable substances shall be required to install, operate, and maintain a combustible gas monitoring system and facilities to divert the entire wastewater flow to a holding tank when the flammable gas, mist, or vapor is in excess of ten (10%) percent of its lower explosive limit. These facilities must be provided and maintained at the user's expense. Users so notified must provide detailed gas monitoring and wastewater diversion plans, including facilities plans, standard operating procedures, BMPs, emergency response plan, and business plans, to the Director for review. Such plans must be reviewed and approved by the Director before installation or commencement of construction of the facilities. At a minimum, the monitoring facilities must be installed in a field location and have an appropriate indicator, automatic continuous recorder, adjustable two-stage alarm system, calibration for gas detection, and a means for diverting flow to a holding tank.

(§ 1, Ord. 1170, eff. April 21, 2011)