The city may require that any person discharging or proposing to discharge wastewater to the wastewater disposal system file a periodic discharge report. The discharge report may include, but not be limited to, nature of process, rates of flow, mass discharge rate, raw material and production quantities, hours of operation, number and classification of employees, compliance status with any state or federal pretreatment standards or other information, which relates to the generation of waste, including wastewater constituents and characteristics in the wastewater discharge. Such reports may also include the chemical constituents and quantity of liquid or gaseous materials stored on-site, even though they may not normally be discharged. At a minimum, a summary of such data indicating each industrial user's compliance with this chapter shall be prepared quarterly and submitted to the city. In addition to discharge reports, the city may require information in the form of wastewater discharge permit applications, self-monitoring reports and compliance schedules. (1987 Code)