A. All significant industrial users that are required to have an industrial waste discharge permit and perform self-monitoring must comply with all applicable requirements under 40 CFR 403.12 and submit to the city during the months of June and December, unless required on other dates or more frequently by the city, a report indicating the nature of the effluent over the previous reporting period. The frequency of monitoring will be prescribed within the industrial waste discharge permit. At a minimum, users must sample their discharge at least twice per year. (In cases where the pretreatment standard requires compliance with a best management practice (BMP) or pollution prevention alternative, the user must submit documentation required by the superintendent or the pretreatment standard necessary to determine the compliance status of the user.) All required reports must be submitted to the city within thirty (30) days of the end date of the reporting time frame and must be representative of the entire reporting time frame.
B. The report must include a record of the concentrations (and mass if specified in the wastewater discharge permit) of the pollutants listed in the wastewater discharge permit that were measured and a record of all flow measurements (average and maximum) taken at the designated sampling locations, and must also include any additional information required by this chapter or the wastewater discharge permit. Production data will be reported if required by the wastewater discharge permit. Both daily maximum and average concentration (or mass, where required) must be reported. If a user sampled more frequently than what was required by the city or by this chapter, it must submit all results of sampling and analysis of the discharge during the reporting period.
C. Any user subject to equivalent mass or concentration limits established by the city or by unit production limits specified in the applicable categorical standards, must report production data as outlined in subsection 13.20.4.1B of this chapter.
D. If the city calculated limits to factor out dilution flows or nonregulated flows, the discharger will be responsible for providing flows from the regulated process flows, dilution flows and nonregulated flows.
E. Flows will be reported on the basis of actual measurement; provided, however, that the city may accept reports of average and maximum flows estimated by verifiable techniques if the city determines that an actual measurement is not feasible.
F. Sampling must be representative of the user's daily operations and must be taken in accordance with the requirements specified in section 13.20.5.1 of this chapter. Wastewater monitoring and flow measurement facilities must be properly operated, kept clean, and maintained in good working order at all times. The failure of a user to keep its monitoring facility in good working order will not be grounds for the user to claim that sample results are unrepresentative of its discharge.
G. The city may require reporting by users that are not required to have an industrial wastewater discharge permit if information or data is needed to establish a sewer charge, determine the treatability of the effluent or determine any other factor which is related to the operation and maintenance of the sewer system.
H. The city may require self-monitoring by the user or, if requested by the discharger, may agree to perform the periodic compliance monitoring needed to prepare the periodic compliance report required under this section. If the city agrees to perform such periodic compliance monitoring, it may charge the user for such monitoring, based upon the costs incurred by the city for the sampling and analyses. The city is under no obligation to perform periodic compliance monitoring for a user.
I. All periodic compliance reports must be signed and certified in accordance with section 13.20.3.5 of this chapter. (Ord. 3374 §2, 2010)