2012-06-08_PERMIT FILE - C2009087A (2)

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PART Page No. 18 Permit No.: CO0048275 month and reported on Division approved discharge monitoring report (DMR) forms (EPA form 33201). The forms shall l mailed to the address listed below so they are received no later than the 28th day of the following month. If no discharge occurs during the reporting period, "No Discharge" shall be reported. The DMR forms consist of four pages - the top 'original" copy, and three attached no-carbon- required copies. After the DMR form has been filled out and signed, the four copies must be separated and distributed as follows: The first original signed copy of each discharge monitoring report (DMR) shall be submitted to the Division at the following address: Colorado Department of Public Health and Environment Water Quality Control Division WQCD -P -132 4300 Cherry Creek Drive South Denver, Colorado 80246 -1530 The remaining copies are for the permittee records. The Discharge Monitoring Report forms shall be filled out accurately and completely in accordance with requirements of this permit and the instructions on the forms. They shall be signed by an authorized person as identified in Part I.E.6. Calculations for all limitations which require the averaging of measurements shall utilize an arithmetic mean unless otherwis specified by the Division in the permit 2. Representative Sampling Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored , discharge. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, befori the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changd without notification to and approval by the Division. If the permittee monitors at the point of discharge any pollutant limited by the permit more frequently than required by the permit, using approved test procedures or as specified in the permit, the result of this monitoring shall be hcluded in the calculation and reporting of data to the Division. 3. Analytical and Sampling Methods for Monitoring The permittee shall install, calibrate, use and maintain monitoring methods andequipment, including biological and indicated pollutant monitoring methods. All sampling shall be performed by the permittee according to specified methods in 40 CFR Part 136; methods approved by EPA pursuant to 40 CFR Part 136; or methods approved by the Division, in the absence of a method specified in or approved pursuant to 40 CFR Part 136. The analytical method selected for a parameter shall be the one that can measure the lowest detected limit for that parameter unless the permit limitation or stream standard for those parameters not limited, is within the testing range of another approved method. When requested in writing, the Division may approve an alternative analytical procedure or any significant modification to an approved procedure. When the most sensitive analytical method which complies with this part, has a detection limit greater than or equal to the permit limit, the permittee shall report "less than (the detectable limit)," as appropriate. Such reports shall not be consdered as violations of the permit limit. The present lowest method detection limits for specific parameters (which have limitations that are, in some cases, less than or equal to the detection limit) are as follows: