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PARTI <br />Page No. 3 <br />PetxnitNo.: CO-0038342 <br />M PARTI , <br />A. DEFINITION OF EFFLUENT L11~IITATIONS <br />1. Effluent Limitations <br />Beginning no later than the effective date of this permit and lasting through the expiration date, the pemuttee is authorized to <br />dischazge from outfall 001 (the discharge of surface runoff water) and outfall 002 (the dischazge of pumped mine drainage), <br />both prior to entering unnamed tnbutaxies to East Salt Creek. <br />In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4, and the <br />Colorado Discharge Permit System Regulations, Section 61.8(2}, 5 C.C.A. 1002-61, the pemritted discharge shall not contain <br />effluent parameter concentrations which exceed the following limitations specified below of exceed the specified flow <br />limitation. <br />a. Outfa11001 <br />PRIMARY LIMITATIONS <br />Parameter Limitations <br /> Maximum Concentrations <br /> 30-Dav Average 7-Dav Average Bally Maximum <br />Flow, MGD Report NA Report <br />Total Suspended Solids (TSS), mg/1 35 NA 70 <br />pH, s.u. (minimum-maximum) <br />. NA NA 6.5-9.0 <br />• <br />Oil and Grease, mg/1 NA NA 10 <br />Total bissolved Solids, mg/1 Report NA Report <br />Settleable Solids, ml/1 NA NA Report <br />Total Iron, ug/1 3,500 NA 7,000 <br />ALTERNATE LINIITATIONS <br />Any dischazge or increase in the volume of a dischazge caused by precipitation within any 24-hour period less than or eaua] to <br />±he 10-vear, 24-hour precinitatioa event (^* snowmelt of equivalent volume) may comply with the following limitations <br />subject to burden of proof requirements described in Part LA.3. <br />Parameter <br />Limitations <br />Maximum Concentrations <br /> 30-Dav Average 7-Dav Average Dailv Maximum <br />Flow, MGD Report NA Report <br />Total Suspended Solids (TSS), mg/l Report NA Report <br />pH, s.u. (minimum-maximum) NA NA 6.5-9.0 <br />Oil and Grease, mg/I NA NA 10 <br />- Total Dissolved Solids, mg/1 Report NA Report <br />Settleable Solids, m]/1 NA NA 0.5 <br />Total Iron, ug/1 Report NA Report <br />Any dischazge or increase in volume of a dischazge caused by precipitation within any 24-hour period ¢reater than the 10- <br />ear 24-hour event (or series of storms or snowmelt of equivalent volume) may comply with the following limitations subject <br />to burden of proof requirements described is Part I.A.3. <br />• <br />art I.C. for Definitions. <br />INDperBP.doc <br />Reviud 06/09/04 <br />