A. Required: Any user subject to a pretreatment standard set forth in this chapter, after the compliance date of such pretreatment standard, or, in the case of a new user, after commencement of the discharge to the POTW, shall submit to the City at six (6) month intervals as prescribed in the indirect discharge permit, unless required more frequently by the City, a report indicating the nature and concentration of prohibited or regulated substances in the effluent which are limited by the pretreatment standards hereof. In addition, this report shall include a record of all measured or estimated average and maximum daily flows during the reporting period. Flows shall be reported on the basis of actual measurement, provided however, where cost or feasibility considerations justify, the City may accept reports of average and maximum flows estimated by verifiable techniques. This report shall also include any additional information as may be required by this chapter or the indirect discharge permit, including production data and flow measurements from any dilute or non- regulated wastestreams.
B. Content: Reports of users shall contain all results of sampling and analyses of the discharge, including the flow and the nature and concentration, or production and mass where required by the City. All sample results shall indicate the time, date and place of sampling, and methods of analyses, and shall certify that the discharge sampled is representative of discharges of normal work cycles and expected pollutant discharges from the user. The frequency of monitoring by the user shall be prescribed within the indirect discharge permit. If a user sampled and analyzed more frequently than what was required in its indirect discharge permit, it must submit all results of sampling and analyses of the discharge as part of its self-monitoring report.
C. Certification For Waived Pollutants: If a user has been granted a waiver to forego sampling for one or more constituents required by the user's categorical pretreatment standards, each periodic compliance report shall include a statement certifying that the level of waived pollutants has not increased in the facility's discharge per 40 CFR 403.12(e)(2)(v).
D. Certification For NSCIUs: If the City has designated a user as an NSCIU (per section 10-5-3 of this chapter), the user is required to submit an annual certification statement as specified in 40 CFR 403.12(q) and include any additional information necessary to support the certification statement.
E. Other Users: All users not required to obtain an indirect discharge permit shall provide appropriate reports to the City as may be required. (Ord. 8-19, 7-9-2019; amd. Ord. 42-23, 12-12-2023)