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The DMR forms consist of four pages - the top "original" copy, and three attached no- carbon - required copies. After the <br />DMR form has been filled out and signed, the four copies must be separated and distributed as follows: <br />The first original signed copy of each discharge monitoring report (DMR) shall be submitted to the Division at the following <br />address: <br />Colorado Department of Public Health and Environment <br />WQCD -PE -B2 <br />4300 Cherry Creek Drive South <br />Denver, Colorado 80222 -1530 <br />Part I <br />Page No. 9 <br />Permit No.: CO- 0027529 <br />The first duplicate signed copy of each discharge monitoring report (DMR) shall be submitted to the following agency: <br />U.S. Environmental Protection Agency <br />Water Management Division <br />NPDES Branch 8WM -C <br />999 18th Street, Suite 500 <br />Denver, CO 80202 -2466 <br />The third and fourth copies are for the permittee records. The Discharge Monitoring Report forms shall be filled out <br />accurately and completely in accordance with requirements of this permit and the instructions on the forms. They shall be <br />signed by an authorized person as identified in Part I.E.6. <br />Calculations for all limitations which require the averaging of measurements shall utilize an arithmetic mean unless otherwise <br />specified by the Division in the permit. <br />2. Representative Sampling <br />Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored <br />discharge. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, before <br />the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changed <br />without notification to and approval by the Division. <br />If the permittee monitors at the point of discharge any pollutant limited by the permit more frequently than required by the <br />permit, using approved test procedures or as specified in the permit, the result of this monitoring shall be included in the <br />calculation and reporting of data to the Division. <br />3. Analvtical and Sampling Methods for Monitoring <br />The permittee shall install, calibrate, use and maintain monitoring methods and equipment, including biological and indicated <br />pollutant monitoring methods. All sampling shall be performed by the permittee according to specified methods in 40 C.F.R. <br />Part 136; methods approved by EPA pursuant to 40 C.F.R. Part 136; or methods approved by the Division, in the absence of a <br />method specified in or approved pursuant to 40 C.F.R. part 136. The analytical method selected for a parameter shall be <br />the one that can measure the lowest detected limit for that parameter unless the permit limitation or stream standard <br />for those parameters not limited, is within the testing range of another approved method. When requested in writing, <br />the Division may approve an alternative analytical procedure or any significant modification to an approved procedure. <br />