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<br />PART I <br />Page lb of 19 <br />Permit No. CO-0000132 <br />A. TERMS AND CONDITIONS <br />1. Effluent Limitations - Discharge points 003, 004, 005, 006, 007, 009 <br />and 010 (Cont. <br />Any discharge or increase in volume of a discharge caused by , <br />precipitation within any 24-hour period greater than the 10-year, <br />24-hour event (or series of storms or snowmelt of equivalent volume) <br />may comply with the following limitations subject to burden of proof <br />requirements described in Part I.A.2. <br />Flow, MGD - monitoring only per Part I.B.1. <br />Total Dissolved Solids - monitoring only per Part I.B.1. <br />pH shall remain between 6.5 and 9.0 s.u. c/. <br />031 and grease shall not exceed 10 mg/1 c7 in any grab sample nor <br />shall there be a visible sheen f/. <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 />sauitary wastewaters from toilets or related facilities, or other <br />pollutants not associated with active mining operations. There shall <br />be m land application of wastewater, other than for dust control, <br />without the previous authorization of a specific discharge point. <br />2. Burden of Proof Requirements - Discharge points 003, 004, 005, 006, <br />007, 009 and 010 <br />The permittee shall have the burden of proof when requesting relief <br />from total suspended solids (TSS), total iron and/or settleable solids <br />limitations. <br />For rainfall, to waive TSS and total iron limitations, St is necessary <br />to prove that discharge occurred within 48 hours after measurable <br />precipitation has stopped. In addition, to waive settleable solids <br />limitations, it is necessary to prove that discharge occurred within <br />48 hours after precipitation greater than the 10-year, 24-hour storm <br />event. <br />For saowmelt, to waive TSS and total iron limitations, it is necessary <br />to prove that discharge occurred within 48 hours after pond inflow has <br />stopped. In addition, to waive settleable solids limitations, it is <br />necessary to prove that discharge occurred within 48 hours after pond <br />inflow volume greater than the 10-year, 24-hour event has stopped. <br />The Division shall determine the adequacy of proof. See Section I.B.3. <br />See Part I.C. for Footnotes <br />