§ 150-28. Accidental discharges.

A. 

Prevention and facilities. Each user shall provide protection from accidental discharge of prohibited materials, other substances regulated by this chapter or slug discharges. Facilities to prevent accidental discharge of prohibited materials or slug discharges shall be provided and maintained at the owner's or user's expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the City and shall be approved by the Director of Utilities before construction of the facility. No user who commences contribution to the POTW after the effective date of this chapter shall be permitted to introduce pollutants into the system until accidental or slug discharge prevention procedures have been developed. The POTW will evaluate, at least once every two years, whether each such significant industrial user needs a plan to control slug discharges. If the POTW decided that a slug control plan is needed, the plan shall contain, at a minimum, the following elements:

(1) 

A description of discharge practices, including nonroutine batch discharges.

(2) 

A description of stored chemicals.

(3) 

Procedures for immediately notifying the POTW of slug discharges, including any discharge that would violate a prohibition under 40 CFR 403.5(b), with procedures for follow-up written notification within five days.

(4) 

If necessary, procedures to prevent adverse impact from accidental spills, including inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site runoff, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants (including solvents) and/or measures and equipment for emergency response.

B. 

Notification of discharge. In the event that an accidental or slug discharge should occur, the user shall immediately telephone and notify the POTW treatment plant of the incident. The notification of an accidental or slug discharge shall include the location of the discharge, type of waste, concentration of pollutants, volume of flow and corrective actions taken or planned.

C. 

Written report. Within five days following an accidental or slug discharge, the user shall submit to the Director of Utilities a detailed written report describing the cause of the discharge and the measures taken or to be taken by the user to prevent similar future occurrences. Such notification shall not relieve the user of any expense, loss, damage or other liability which may be incurred as a result of damage to the POTW treatment plant, fish kills or any other damage to person or property resulting from the accidental or slug discharge, nor shall such notification relieve the user of any fines, civil penalties or other liability which may be imposed by this chapter or other applicable pretreatment standards, pretreatment regulations or law.