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PART I Page le of 14 Permit Na. CO-0027154 ~, TERMS AND CONDITIONS 1. Effluent Limitations b) ~yffluent Limitations For Outfalls 005 and 007 (continued) ii) Outfall 007 (continued) ALTERNATE LIMITATIONS Any discharge or increase in the volume of a discharge caused by precipitation vithin any 24-hour period less than ar equal to the 10-year. 24-hour orecioitation event (or snowmelt of equivalent volume) may comply with the following limitations subject to burden of proof requirements described in Part I.A.2. Effluent Parameter Discharge Limitation 30-Day Avgy ~ Daily Max. 'low, HCD Report Report ettleable solids, ml%1 j/kJ Report 0.5 J 'otal Recoverable Iron, mg/1 1.0 Report :atal Recoverable Manganese, mg/1 Report Report otentially Dissolved Copper, mg/1 J 0.073 'J.130 otentially Dissolved Silver, mg/1 r/ Report Report .H, standard units (minimum-maximum) N/A 6.5-9.0 it and Grease, mg/1 (No visible sheen) N/A 10 lectrical Conductivity, umho/cm 5150 Report ET, Chronic Lethality Through March 31, 1996 N/A Report Beginning April 1, 1996 N/A See Part I.A.l.f) Any discharge or increase in volume of a discharge caused by precipitation within any 24-hour period greater than the 10-year. 24-hour event (or series of storms or snowmelt of equivalent volume) may comply with the following limitations subject to burden of proof requirements described in Part I.A.2. Effluent Parameter Discharge Limitation 30-Dav Avg ~ Daily Hax. lov, HGD ~tal Recoverable Iron, mg/1 ~tal Recoverable Manganese, mg/1 otentially Dissolved Copper, mg/1 nJ otentially Dissolved Silver, mg/1 J i, standard units (minimum-maximum) it and Grease, mg/1 (No visible sheen) lectrical Conductivity, umho/cm 3T, Chronic Lethality Through March 31, 1996 3eginning April 1, 1996 Report Report 1.0 Report Report Report 0.073 0.130 Report Report N/A 6.5-9.0 N/A 10 5150 Report N/A Report N/A See Part I.A.l.f) .e Part I.D. for Footnotes Amendment No. 2 Issued 07~/~~4y Effective 09.i/~ 41/