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~'- --.wca .p, i, .- .. .RK.,++_. 'Y.4Y~ ~ ..~..r-+- - _rs~ais ,. ~ .+... s~...wq!!.;,~-.~ w+_ R <br />PART I <br />Page lg of 14 <br />Permit No. CO-0027154 <br />A. TERMS AND CONDITIONS <br />1. Effluent Limitations <br />d) Fffluent Limitatlons For Outfalls 002 - 004 006 and 008 (continued) <br />ALTERNATE LIMITATIONS <br />Effluent Parameter <br />Flow, MCD <br />Settleable Solids, ml/1 j/kJ <br />pH, standard Unita (minimum-maximum) <br />Oil and Grease, mg/1 (No visible sheen) <br />Total Dissolved Solids, mg/1 <br />Discharge Limitation <br />Report <br />Report <br />6.5-9.0 <br />10 J <br />Report <br />e) Effluen= Limitatlons For Outfalls 009. 010. Olu and 017 (surface runoff disch:s ges <br />from post mining areas) <br />Effluent Parameter <br />Flow, MGD <br />Settleable Solids, ml/1 j/kJ <br />pH, standard units (minimum-maximum) <br />011 and Crease, mg/1 (No visible sheen) <br />Electrical Conductivity, umho/cm <br />Discharge Limitation <br />Report <br />o.s J <br />6.5-9.0 <br />l0 J <br />Report <br />Any discharge or Increase in volume of a discharge caused by precipitation within any <br />24-hour period Yreater than the 10-year. 24-hour event (or series of storms or snowmelt <br />of equivalent volume) may comply with the following limitations subject to burden of <br />proof requirements described in Part I.A.2. <br />Effluent Parameter <br />Flow, MGD <br />Settleable Solids, ml/1 j/k/ <br />pH, standard Units (minimum-maximum) <br />Oil and Grease, mg/1 (No visible sheen) <br />Electrical Conductivity, umho/cm <br />Discha_ge Limitation <br />Report <br />Report <br />6.5-9.0 <br />10 J <br />Report <br />f) 4lhole Effluent Toxicity - Chronic Lethality Limitation - Outfalls 001. 005 and 007 <br />Beginning April 1, 1996, and lasting through March 31, 1998, there shall be no <br />statistically significant difference in lethality (at the 95X confidence level) <br />between the control and any effluent concentration less than or equal to 100X <br />effluent. Such limitation shall apply as a daily maximum. <br />See Part I.D. for Footnotes <br />Corrected 03/15/93 <br />Amendment No. 2 Issued 07•/~•4/ Effective UrJ.O~ / f~ <br />