A. Any user required to have an industrial waste discharge permit and perform self-monitoring shall submit to the Manager, at dates specified in the permit, a report compiling the results of all effluent sampling over the previous reporting period. The frequency of monitoring shall be as prescribed within the industrial waste discharge permit. At a minimum, SIU's shall sample their discharge, or have it sampled by the County at least twice per year.

B. The report shall include a record of the concentrations (and mass if specified in the wastewater discharge permit) of the pollutants that were measured and a record of all flow measurements (average and maximum) taken at the designated sampling locations, as required in the industrial waste discharge permit. The report 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 Manager or by this Chapter, using methodologies in 40 CFR Part 136, it must submit all results of such sampling and analysis of the discharge during the reporting period.

C. Any user subject to equivalent mass or concentration limits established by the County, or by unit production limits specified in the applicable categorical standards, shall report production data as outlined in PCC 13.06.260.

D. If the Manager 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 measurement; provided, however, that the Manager may accept reports of average and maximum flows estimated by verifiable techniques if the Manager determines that an actual measurement is not feasible.

F. Sampling shall be representative of the user's daily operations and shall be taken in accordance with the requirements specified in PCC 13.06.490.

G. The Manager 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 Manager 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 County agrees to perform such periodic compliance monitoring, it may charge the user for such monitoring, based upon the costs incurred by the County for the sampling, analyses, and reporting. The County is under no obligation to perform periodic compliance monitoring for a user.