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0 <br /> Pretreatment Industrial Users <br /> General Permit Conditions <br /> Page 2 of T <br /> the laboratory utilized must be certified by the State of California Department of <br /> Public Health for the specific analysis conducted. <br /> C. Acceptable methods for the analysis of wastewater required in the Wastewater <br /> Discharge Permit Self-Monitoring Sample Program shall be limited to those listed in <br /> 40 CFR Part 136. <br /> d. Composite sampling shall be flow proportional and conducted on a continuous 24 <br /> hour basis, unless otherwise specified in this permit. Composite samples shall be <br /> changed out and restarted after each consecutive 24 hour period. <br /> e. Sampling frequency and reporting will be determined on a"case-by-case"basis, but <br /> must at least comply with 40 CFR 403.12 (g) "Monitoring and Analysis to <br /> Demonstrate Continued Compliance" and any specific categorical requirements. <br /> f. Self-monitoring sample frequencies of once per 3 months shall mean once per <br /> calendar quarter (January through March, April through June, July through <br /> September and October through December). <br /> g. Self-monitoring sample frequencies of once per 6 months shall mean once per <br /> calendar 6 month period (January through June and July through December). <br /> 8. Permittee shall perform all required quality assurance and control procedures as contained <br /> within City of Stockton Quality Assurance Manual. <br /> 9. If more than the required number of samples are taken for analysis, those results shall also <br /> be reported to the City of Stockton. Permittee must report all results [40 CFR 403.12(k)(1)j. <br /> 10. The City may use grab samples for the determination of compliance with local limitations and <br /> other applicable limits. <br /> 11. The permittee must notify the City of Stockton, Environmental Control Office,within 24 hours <br /> of discovery of ar�y violation with Federal Categorical Pretreatment Standards, State, local <br /> limitations or any condition contained within this permit. Permittee shall repeat sampling and <br /> pollutant analysis for those which exceeded limitation requirements and shall submit, in <br /> writing, the results of this second analysis within 30 days after becoming aware of this <br /> violation. The report shall also include all steps taken or to be taken to reduce, eliminate, <br /> and prevent recurrence of such violations. <br /> 12. Permittee shall comply with all reporting requirements contained within the Federal <br /> categorical regulations (40 CFR 403.12). At a minimum, unless otherwise specified in this <br /> wastewater discharge permit, semi-annual reports must be submitted to the City by January <br /> 10th and July 10th (for the previous six month period). <br /> 13. Information and data on a permittee obtained from reports, questionnaires, permit <br /> applications, permits and monitoring programs and from inspections shall be available to the <br />