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k. Outfall MN13 <br />Effluent Parameter Frequency Sample Type _ <br />Total Recoverable Arsenic, ug /1 Quarterly Grab <br />Potentially Dissolved Cadmium, ug /l Quarterly _ Grab <br />Potentially Dissolved Trivalent Chro_ mium, ug Quarterly Grab <br />Potentially Dissolved Co er, ugh] <br />- <br />._._..... ___.___.__._..____ _. _.._g._. Quarterly Grab <br />Total Recoverable Iron u /l Quarterly <br />' g _ Grab <br />Potentially Dissolved Lead, ug /1 Quarterly_ -- - - ____ Q Y- Grab <br />Total Mercury, u /1 Quarterly Grab <br />... _......_._.........._ .. ____.. .._w_.....___.a..... _ -.. Quarterly Grab <br />Potenitall r <br />Dissolved Nickel, ug /1 Quarterly _.-_.. — "•`•' '• <br />- ... .._. -..,. _ .........._ . _ ... _..._ _ Y Grab <br />Potentially Dissolved Selenium u /l _ ° <br />_____._______._____�_ g._ - Quarterly Grab <br />Potentially Dissolved Silver u /1 -- <br />' $ Quarterly Gr <br />Quarterly Grab <br />Potentially Dissolved Manganese, ug /1 <br />Potentially Dissolved Zinc, ug /1 <br />Outfall WTE ( Outfall 008) <br />Effluent Parameter <br />Wet, chronic <br />Frequency <br />Annually <br />Sample Type <br />Grab <br />m. Oil and Grease Monitoring <br />For every outfall with oil and grease monitoring, in the eventan oil sheen or floating oil is observed, a grab sample shall <br />be collected, analyzed, and reported on the appropriate DMR. In addition, corrective action shall be taken immediately <br />to mitigate the discharge of oil and grease. A description of the corrective action taken should be included with the <br />DMR. <br />Self - monitoring sampling by the permittee for compliance with the monitoring requirements specified above shall be <br />performed at the following locations: Outfalls 005, 006, 008, 009, 010, 011, 012, 013, 014, 015, 016 and 017 at the outfalls of <br />the sedimentation ponds prior to entering the immediate receiving waters. <br />If the permittee, using the approved analytical methods, monitors any parameter more frequently than required by this permit, <br />then the results of such monitoring shall be included in the calculation and reporting of the values required in the Discharge <br />Monitoring Report Form (DMRs) or other forms as required by the Division. Such increased frequency shall also be <br />indicated. <br />Monitoring Exemptions: <br />PART I <br />Page No. 20 , <br />Permit No.: CO-000022 1 <br />For Outfalls 005, 006, 008, 009, 010, 011, 015, 016 and 017, during the winter season, monitoring may be suspended at the <br />permittee's option when adverse weather conditions prohibit safe access to one or more of these discharge points at the <br />frequencies specified in this subpart. Monitoring shall recommence at the first opportunity after such inaccessibility ends. <br />When inaccessibility prevents sample collection, the permittee shall document what monitoring was missed and the specific <br />conditions that prevented access in cover letters to the appropriate Discharge Monitoring Reports. For Outfall 008, the <br />permittee is exempted from the chronic WET testing frequency of 3 grabs /test if effluent discharges cease before the end of <br />the monitoring period (see Part I.A.6.a). <br />2. Salinity Parameters <br />In order to obtain an indication of the quantity of Salinity, measured as total dissolved solids (TDS), being discharged from <br />the site the permittee shall monitor the wastewater efflient at the frequencies given in the tables above. <br />