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PART I <br /> Page 6 of 16 <br /> Permit No: CO-0039136 <br /> d. The person(s) who performed the analyses; <br /> e. The analytical techniques or methods used; and <br /> f. The results of all required analyses. <br /> 6. Calculations for all limitations which require averaging of <br /> measurements shall utilize an arithmetic mean unless otherwise <br /> specified. <br /> 7. Additional Monitoring by Permittee <br /> If the permittee monitors any pollutant at the location(s) designated <br /> herein more frequently than required by this permit, using approved <br /> analytical methods as specified above, the results of such monitoring <br /> shall be included in the calculation and reporting of the values <br /> required in the Discharge Monitoring Report Form (EPA No. 3320-1) , <br /> or other forms as required by the Division. Such increased frequency <br /> shall also be indicated. <br /> 8. Records Retention <br /> All records and information resulting from the monitoring activities <br /> required by this permit including all records of analyses performed <br /> and calibration and maintenance of instrumentation and recordings <br /> from continuous monitoring instrumentation shall be retained for a <br /> minimum of three (3) years, or longer if requested by the Regional <br /> Administrator or the State Water Quality Cont-rol Division. <br /> 1/81 <br />