(A) Accidental discharges. Each industrial user having the ability to cause interference with the POTW treatment plant or to violate the regulatory provisions of this chapter shall implement a plan to provide protection against accidental discharge to the POTW of prohibited materials or other substances regulated by this chapter. The Director may require any user to develop, submit for approval and implement such a plan. Facilities to prevent accidental discharge or prohibited materials from entering the POTW shall be provided and maintained at the user’s own cost and expense. All industrial users whose wastewater includes or could include compatible or incompatible pollutants in amounts great enough to cause interference with the POTW must have detailed plans on file at the District showing facilities and operating procedures to provide this protection. Plans shall be approved by the District before construction of the facility. Review and approval of such plans and operating procedures shall not relieve the industrial user from the responsibility to modify its facility as necessary to meet the requirements of this chapter.
(1) Notification. In the case of any discharge of compatible or incompatible pollutants which may cause interference at the POTW or violate regulatory requirements of this chapter, it shall be the responsibility of the industrial user to immediately telephone and notify the District of the incident as set forth in § 58.140(B)(1) of this chapter. This notification shall include name of caller, location and time of discharge, type of wastewater, concentration, volume and corrective actions.
(2) Written report. Within five working days following such an accidental or deliberate discharge, the industrial user shall submit to the Director a detailed written report describing the cause of the discharge and the measures to be taken by the user to prevent similar future occurrences as set forth in § 58.140(B)(2) of this chapter. Follow-up reports may be required by the District as needed. Such report, or reports, shall not relieve the industrial user of any expense, loss, damage or other liability which may be incurred as a result of damage to the POTW, fish kills, or any other damage to person or property; nor shall such report relieve the user of any fines, civil penalties or other liability which may be imposed by the chapter or otherwise. Failure to report accidental or deliberate dischargers may, in addition to any other remedies available to the District, result in the revocation of the user’s wastewater discharge permit.
(B) Slug control plan. The Director shall evaluate each significant industrial user within a year of being designated as such, regarding the need for a slug control plan. The Director may require any user to develop, submit for approval and implement such a plan. A slug control plan shall address, at minimum, the following:
(1) Include definition of slug discharge as per § 58.002;
(2) Description of discharge practices, including non-routine batch discharges;
(3) Description of stored chemicals;
(4) Procedures for immediately notifying the Director of any discharge meeting the definition of “slug discharge”, as set forth in § 58.140(B); and
(5) Procedures to prevent adverse impact from any accidental or slug discharge. Such procedures include, but are not limited to, 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.
(C) Evaluation criteria. Criteria used to evaluate the need for an accidental or slug control will be site specific, but at a minimum will consider:
(1) Quantity and types of materials used or stored and their potential for causing violation of local limits or the general or specific prohibitions;
(2) Potential for such materials to enter the sewer systems and cause damage, pass through or interference; and
(3) Existing controls to prevent any potential accidental or slug discharges.
(D) Notification of change. The Director must be notified immediately of any change that occurs at a facility that affects the potential for an accidental or slug discharge, thereby allowing the District to reevaluate the need for a accidental or slug control plan or other actions to prevents such discharges.
(Prior Code, § 54.63)