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PARTI <br />Page No. 3 <br />Permi[ No. CO-0000132 <br />PART I <br />A. DEFINITION OF EFFLUENT LIMITATIONS <br />1. Effluent Limitations <br />Beginning no later than the effective date of this permit and lasting through October 31, 2001, the petminee is authorized <br />to dischazge from outfalls 007, 010, 012, 013 and 014 -the surface runoff outfalls; outfall 011 -the Sanborn Creek Mine <br />mine water ou[fall; and outfall 015 -the Elk Creek Mine trine water outfall; to the North Fork of the Gunnison River, <br />Hubbazd Creek, Sanborn Creek and Elk Creek. <br />In accordance with the Colorado Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4 (5 <br />CCR 1002-62), and the Colorado Dischazge Permit System Regulations, Section 61.8(2), (5 CCR 1002-61), the permitted <br />dischazge shall not contain effluent paameter concentrations which exceed the following limitations specified below or <br />exceed the flow limitation, where specified. <br />(a) Outfalls 007. 010. 012. 013 and 014 <br />Effluent Parameter <br />Discharee Limitations <br />30.Dav Ave Daily Max <br />Flow, MGD <br />Total Suspended Solids, mg/Q <br />Total Iron, mg/Q <br />Outfalls 007, 010 <br />Outfalls 012, 013, 014 <br />Settleable Solids, mQ/Q <br />Oil and Grease, mg/¢ <br />pH, s.u. (minimum-maximum) <br />Report Report <br />35 70 <br />3.5 7.0 <br />3.0 6.0 <br />N/A Report <br />N/A 10 <br />N/A 6.5-9.0 <br />ALTERNATE LIhIITATIONS <br />Any dischazge or increase in the volume of a discharge caused by precipitation within any 24-hour period less than or <br />equal to the 10-veaz. 24-how orecipitation event (or snowmelt of equivalent volume) may comply with the following <br />limitations -subject to burden of proof requirements described in Part I.A.3. <br />Effluent Parameter Discharee Limitations <br /> 30.Dav Ave Daily Max <br />Flow, MGD Report Report <br />Total Suspended Solids, mg/t Report Report <br />Total Iron, mg/Q Report Report <br />Settleable Solids, mQ/Q N/A 0.5 <br />Oil and Grease, mglQ N/A 10 <br />pH, s.u. (minimum-maximum) N/A 6.5-9.0 <br />See Part I.C. for Defutitions. <br />Amendment No. 1 Issued APRIL ]7 1997 Effective IUN 1 1997 <br />Amendment No. 2 Issued DEC 28 1998 Effective FEB 11999 <br />Amendment No. 5 Issued <br />Effective <br />WGN Mmmb ~.. ~M. <br />