(A) Slug discharge control plans. The city shall evaluate, within one year of being designated as a significant industrial user and at least once each permit cycle to determine whether each such significant industrial user needs a plan or other action to control slug discharges. For the purpose of this section, a slug discharge is any discharge of a non-routine, episodic nature, including but not limited to an accidental spill or a non-customary batch discharge. If the POTW determines that a slug control plan is needed, the plan shall contain, at a minimum, the following elements:
(1) A description of discharge practices, including non-routine batch discharges;
(2) A description of stored chemicals;
(3) Procedures for immediately notifying the POTW of slug discharges, including any discharge that would violate any prohibition specified in § 53.153 of this chapter, with procedures for follow-up written notification within five days;
(4) If necessary, procedures to prevent an 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 run-off, 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 slug discharges.
(1) In the case of a slug discharge, it is the responsibility of the user to immediately notify the city's Chief Plant Operator, pretreatment coordinator, or Director of Public Works of the incident and provide the following information: location of discharge, date and time thereof, type of waste, concentration volume, and corrective actions.
(2) Within five days following a slug discharge, the user shall submit to the pretreatment department a detailed written report describing the cause of the discharge, the impact on the user's compliance status, the duration of the discharge (including exact dates and times), and if not corrected, the anticipated time the noncompliance is expected to continue, the type, concentration, and volume of waste discharged, and the measures 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 city's wastewater facilities, fish kills, or any other damage to persons or property; nor shall such notification relieve the user of any fines, civil penalties, or other liabilities which may be imposed by this chapter or other applicable law.
(3) The POTW will keep all records of the activities associated with slug control evaluations and results of such activities will be available to the Approval Authority upon request.
(C) Cost and clean-up. Any related costs, including fines, fees or court costs, involved in the cleaning up of a slug discharge shall be paid by the industrial user causing such discharge. This shall include the costs of cleaning up the city's wastewater facilities, and the costs shall include any labor, equipment, or materials involved. The cleaning up of the city's wastewater facilities shall be completed by the city's operators or other contractors approved by the city.
(D) Notification of changes. All industrial users shall promptly notify the Pretreatment Department in advance of any substantial change not already addressed in their slug control plan or other slug control requirements, which may affect the potential for a slug discharge.
(Ord. 17-1121, passed 11-21-2017)