Within five (5) working days following an accidental discharge into the City's storm water drainage system, the person or persons in charge of the material and/or waste which was accidentally discharged shall submit a written report to the City Engineer. The report shall describe in detail the type and volume of the material and/or waste and the cause of the discharge. The report shall also describe in detail all corrective actions taken and measures to be taken to prevent future occurrences. Such notification of the accidental discharge shall not relieve the user of any fines or civil penalties incurred as a result of the event or any other liability which may be imposed by this chapter or other applicable laws.