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<br />PART I <br />Page lb of 19 <br />Permit Number: CO-0032638 <br />A. TERMS AND CONDITIONS (CONTINUED) <br />Flow-(MGD) - monitoring only per Part I.B.1. <br />Salinity - monitoring only per Part I.B.1. <br />pH - (Standard Units) shall remain between 6.5 an 9.0 c/. <br />011 and grease shall not exceed 10 mg/1 c/ in any grab sample <br />nor shall there be a visible sheen. <br />Additional conditions-effective at all times: <br />There shall be no discharge of floating solids or visible foam in <br />other than trace amounts. The discharge shall not contain any <br />sanitary sewage or other pollutants not associated with active <br />mining operations. <br />2. Effluent Limitations For Uutfall 003 <br />Beginning immediately and lasting through March 31, 1992, the <br />permittee is authorized to discharge within the limitations <br />specified below, from outfall(s) serial number(s) 003. <br />u <br />Effluent Parameter <br />Discharge Limitations <br />30-day avg. a/ Daily Max. c/ <br />Flow-(MGD) 1.87 N/A <br />Total Suspended Solids (mg/1) 35 70 <br />Total Recoverable Iron (mg/1) 1.9 3.8 <br />Salinity N/A N/A <br />pH - (Standard Units) shall remain between 6.5 and 9.0 c/. <br />Oil and grease shall not .exceed 10 mg/1 c/ in any grab sample nor shall there <br />be a visible sheen. <br />Any discharge or increase in the volume of a discharge caused by <br />precipitation within any 24-hour period less than or equal to the <br />10-year, 24-hour precipitation event Cor snowmelt of equivalent <br />volume) ~ comply with the following limitations subject to burden <br />of proof requirements described in Part I.A.4. <br />See Part I.C. for footnotes <br />