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PART I <br />Page No. 4 <br />Permit No. COG-850000 <br />EFFLUENT LI113iTATIONS AND MONITORING REQUIREMENTS <br />1. Effluent Limitations <br />a. Active Minine Outfalls <br />ACTIVE MINING PRII1iARY LIhIITATIONS <br />Parameter Limitation <br /> 30-Day Avg. Daily Max. <br />Flow, MGD Report Report <br />Total Suspended Solids, mg/P 35 70 <br />Total Iron, mg1P <br />Existing Sources 3.5 7.0 <br />New Sources 3.0 6.0 <br />Settleable Solids, mP/P Report Report <br />pH, s.u. N/A 6.5-9.0 <br />Oil and Grease, mg/P N/A IO <br />Total Dissolved Solids, mg/P Report Report <br />CO River Bazin Only <br />Total Phosphorus (az P), mg/P Report Report <br />• Dillon Reservoir and UUpper Beaz Creek Drainages ONLY <br />ACTIVE MINING ALTERNATE LII~IITATIONS <br />Any discharge or increase in the volume of a discharge caused by precipitation within any 24-hour period <br />less than or equal to the 10-vear. 24-hour orecipitation event (or snowmelt of equivalent volume) '?~ <br />comply with the following limitations -- subject to burden of proof requirements described in Part I.B.I.d). <br />Parameter Lim itation <br /> 30-Day Avg. Daily Max. <br />Flow, MGD Report Report <br />Total Suspended Solids, mg/P Report Report <br />Total Iron, mg/P Report Report <br />Settleable Solids, mP/P Report 0.5 <br />pH, s.u. N/A 6.5-9.0 <br />Oil and Grease, mg/P N/A 10 <br />Total Dissolved Solids, mg/P Report Report <br />CO River Basin Only <br />Total Phosphorus (az P), tnglP <br />es ONLY <br />er Bear Creek Draina <br />Reservoir and U <br />Dillo Report Report <br />g <br />pp <br />• <br />n <br />See Part I.C. for Definitions <br />