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PART <br />Page 8 of 13 <br />Permit No: CO-0026981 <br />C. <br />MONITORING AND REPORTING <br />1. Representative Sampling <br />Samples and measJrements taken as required herein shall be representative <br />of the volume and nature of [he monitored discharge. <br />2. Reporting <br />Monitoring results obtained dur[ng the previous 3 months shall be <br />summarized for each month and reported on a Discharge Monitoring Report <br />Form (EPA No. 3320-1), postmarked nc later than the 28th day of the mcntn <br />folloo-r(ng the completed reporting period. Tlie f(rst report is duo on <br />July 28, 1975 Duplicate signed copies of these, and all other reports <br />required herein, shall be submitted to the Regional Administrator and the State <br />at the following addresses: <br />Colorado Department of Health U.S. Environmental Protection Agency <br />Water Quality Control Division 18b0 Lincoln Street - Suite 900 <br />4210 Eas[ 11th Aver~ue Denver, Colorado 80220 <br />Denver, Colorado 30220 Attention: Enforcement - PermiC Program <br />3. Definitions <br />a. A "composite" sanple, for monitoring requirements, is defined as a <br />minimum of four (4) grab samples collected at equally spaced two (2) <br />hour intervals and proportioned a~.:ording to flow. <br />b. A "grab" sample, for mcnitoring requirements, is defined as a single <br />"dip and take" sample collected at a representative point in the discharge <br />stream. <br />c. An "instantaneous" measurement, for monitoring requirements, is defined <br />as a single reading, observation, or measurement us(ng existing monitoring <br />facll[ties. <br />4. Test Procedures <br />Test procedures for the analysts of pollutants shall conform to regulations <br />published pursuant to Section 304 (g) of the Act, and Colorado State Effluent <br />Limitations (400), under which such procedures may be required. <br />5. Recording of Results <br />For each measurenen[ or sample taken pursuanC to the reeuirements of this <br />permit, the permittee shall record the folluwing information: <br />a. The exact place, date, and time of samp'Ing; <br />b. The dates the analyses were performed; <br />e. The person(s) who performed [ha analyses; <br />