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PARTI <br />Page No. 8c <br />Permit No. CO-0000132 <br />B. MONrfORING REQ1mtEMFNTS <br />1. Freauencv and Sample Tvue <br />In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified in Part <br />I.A.1, the permittee shall monitor all effluent pazameters at the following frequencies. Such monitoring will begin <br />immediately and last for the life of the permit unless otherwise noted. The results of such monitoring shall be reported on <br />the Dischazge Monitoring Report form (See Part I.E.1.). <br />(a) Outfalls 007. 009. 010. 012 and 013 <br />Effluent Parameter <br />Flow, MGD <br />Total Suspended Solids, mg/¢ <br />Total Iron, mg/¢ <br />Settleable Solids, m¢/¢ <br />Oil and Grease, mg/¢ <br />pH, s.u. <br />Total Dissolved Solids, mg/¢ <br />(b) Outfa11011 <br />Effluent Parameter <br />Flow. MGD <br />Measurement Freauencv Sample Tvce <br />Monthly Instantaneous <br /> or Continuous <br />Montlily Grab <br />Monthly Grab <br />Monthly Grab <br />Monthly Visual-See Part I.B.1.(c) <br />Mondtly In-sim <br />Quarterly Grab <br />Total Suspended Solids, mg/Q <br />Total Iron, mg/¢ <br />Oil and Grease, mg/¢ <br />pH, s.u. <br />Total Dissolved Solids, mg/¢ <br />Whole Effluent Toxicity, Acute <br />(c) Outfa11015 <br />Etlluent Parameter <br />Flow, MGD <br />Total Suspended Solids, mg/¢ <br />Total Iron, mg/¢ <br />Oil and Grease, mg/¢ <br />pH, s.u. <br />Total Dissolved Solids, mg/¢ <br />Whole Effluent Toxicity, Chronic <br />Measurement Freauencv Sample Tvoe <br />Weekly Instantaneous <br /> or Continuous <br />Monthly Grab <br />Monthly Grab <br />Weekly Visual-See Part I.B.1.(c) <br />Weekly In-si[u <br />Quatterly Grab <br />Quarterly Grab <br />Measurement Freauencv <br />Sample Tvoe <br />Weekly Instantaneous <br /> or Continuous <br />Monthly Grab <br />Monthly Grab <br />Weekly Visual-See Pazt 1.B.1.(c) <br />Weekly In-situ <br />Quarterly Grab <br />Quarterly 3 Composites/Test <br />Self-monitoring sampling by the permittee far compliance with the monitoring requiremenu specified above shall be <br />performed at the following locations: surface ntnoff outfalls -007, prior to entering Hubbazd Creek; 009 and 013, prior to <br />entering the North Fork of the Gunnison River; 010, prior [o entering Sanborn Creek; 012, prior to entering Elk Creek; <br />the Sanborn Creek Mine mine water outfall - 011, prior [o entering Sanborn Creek, and the Elk Creek Mine mine water <br />outfall - 015, prior to entering Elk Creek. <br />See Part I.C. for Definitions. <br />Amendment No. 5 Issued <br />Effective <br />mww~e, ,.. ,w. <br />