A. Any user that is required to have an industrial waste discharge permit and performs self-monitoring shall submit to the city semi-annually on the 15th day of June and December, unless required on other dates or more frequently by the city, a report indicating the nature and concentration of pollutants in the discharge which are limited by pretreatment standards. 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 city or the pretreatment standard necessary to determine the compliance of the user. The frequency of monitoring shall be as prescribed within the industrial waste discharge permit. At a minimum, users shall sample their discharge at least twice per year. In addition, this report shall include a record of measured or estimated average and maximum daily flows for the reporting period for the discharge according to 40 C.F.R. 403.12(b)(4).
B. The report shall include a record of the concentration (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 shall also include any additional information required by this chapter or the wastewater discharge permit. Production data shall be reported if required by the wastewater discharge permit. Both daily maximum and average concentration (or mass, where required) shall be reported. If a user sampled and analyzed more frequently than what was required by the city or by this chapter, using methodologies in 40 C.F.R. Part 136, 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 shall report production data as outlined in § 13.16.092.
D. If the city calculated limits to factor out dilution flows or non-regulated flows, the user will be responsible for providing flows from the regulated process flows, dilution flows and non-regulated flows.
E. Flows shall be reported on the basis of actual measurements, provided, however, that the city may accept reports of average and minimum flows estimated by verifiable techniques if the city determines that an actual measurement is not feasible.
F. Discharges sampled shall be representative of the user's daily operations and samples shall be taken in accordance with the requirements specified in §§ 13.16.090 et seq.
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 user, 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. Any such charges shall be added to the normal sewer charge and shall be payable as part of the sewer bills. The city is under no obligation to perform periodic compliance monitoring for a user.
I. All wastewater samples must be representative of industrial user's discharge. Wastewater monitoring and flow measurement facilities shall be properly operated, kept clean, and maintained in good working order at all times. The failure of an industrial user to keep its monitoring facility in good working order shall not be grounds for the industrial user to claim that sample results are unrepresentative of its discharge.
1. In the event an industrial user's monitoring results indicate a violation has occurred, the industrial user shall immediately (within 24 hours of becoming aware of the violation) notify the Public Works Director or other designee and shall re-sample its discharge. The industrial user shall report the results of the repeated sampling within 30 days of discovering the first violation.
2. The reports shall indicate the time, date, persons, location of sampling, and methods of analysis, and shall certify that such sampling and analysis is representative of the normal work cycles and expected pollutant discharges to the city sewer system. All sampling and analysis protocol shall be in accordance with 40 C.F.R. Part 136.
3. The Public Works Director or other designee may require reporting by dischargers that are not required to have an industrial discharge permit if information or data is needed to establish a sewer charge, determine the treat ability of the effluent or determine any other factor which is related to the operation and maintenance of the sewer system.
4. Reporting requirements for industrial users not subject to categorical pretreatment standards will be according to the requirements established in 40 C.F.R. 403.12(h) and § 13.16.093.
J. All periodic compliance reports must be signed and certified in accordance with § 13.16.061.
(Ord. 1413 § 6.4, passed 4-1-2015)