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t <br />• <br />A. DEFINITION OF EFFLUENT LIMITATIONS <br />PART I <br />PARTI <br />Page No. 3 <br />Permit No.: CO-0000906 <br />1. Effluent Limitations authorize Beginning no later than the effective date of this permit and lasting through the expiration date, themine water from Pondl tat <br />discharge from outfall(s): 001A - at a maximum discharge rate of 2500 gpm (3.6 mgd), treated <br />37°09.423'N, 104°58.067'W, and 009A - at a maximum discharge rate of 2500 gpm (3.6 mgd), mine water from the mine <br />portal at 37°09.429'N, 104°56.765'W. Section <br />61 Reguations <br />and In accordance with the Water Quality Control Commission <br />10Effluent 02-61, the per <br />dis barge shal not contain <br />Colorado Discharge Permit System Regulations, <br />parameter concentrations which exceed the following limitations specified below or exceed the specified ow <br />limitation. <br />Effluent Parameter <br />• <br />Flow, MGD <br />Total Suspended Solids (TSS), mg/l <br />pH, s.u. (minimummaximum) <br />Oil and Grease, mg/l <br />Total iron, µg/l <br />Total Ammonia as N, mg/l <br />Electrical Conductivity, dS/m <br />Sodium Adsorption Ratio <br />Calcium mg/l <br />Magnesium, mg/1 <br />Sodium, mg/1 <br />Bicarbonate, mg/l <br />Whole Effluent Toxicity, Acute (009A, 009B, 009C) <br />Whole Effluent Toxicity, Chronic (001A, 00113, 001C) <br />F?fluent Limitations at Outfall 001A and009A <br /> Maximum Concentrations <br />31-Dav Averag e 7-_D av Averaee Daily Maximum <br />3.6 * NA Report <br />35 NA 70 <br />NA NA 6.5-9 <br />NA NA 10 <br />3,500 NA 7,000 <br />Report NA Report <br />1.845 NA Report <br />Report NA Report <br />Report NA Report <br />Report NA Report <br />181 NA Report <br />Report NA Report <br />NA NA LC50 > 100% <br /> Statistical Difference <br />NA NA & IC25 ? IWC <br />* The combined discharge from Outfalls 001A and 009A may not exceed 3.6 MGD. <br />See Part C for Definitions <br />0