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PART I <br />Page 5 <br />Permit No. COG-850000 <br />B. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />1. Effluent Limitations (continued) <br />b) Post-Mining Outfall(s) (continued) <br />Effluent Parameter <br />Flow, MGD <br />pH, standard units (minimum-maximum) <br />Oil and Grease, mg/1 (No visible sheen) <br />Settleable Solids, ml/1 g/ <br />Discharge Limitation <br />Maximum Concentration <br />Total Dissolved Solids, mg/1 (Colorado River Basin Only) <br />Total Phosphorus (as P), mg/1 <br />(Dillon P.eser~oir and Upper Bear Creek Drainages Only) <br />ALTERNATE LIMITATIONS <br />Daily Maximum <br />Report <br />6.5-9.0 <br />10 ~ <br />0.5 <br />Report <br />Report <br />Any discharge or increase in the volume of a discharge caused by <br />precipitation within any 24-hour period greater than the 10-•~ear._ <br />24-hour precipitation event (or snowmel[ of equivalent ~:olume) <br />may comply with the following limitations sub;ect to burden of <br />proof requirements described in Part I.B. 1. d). <br />Flow, MGD - monitoring only per Patt I.B.2.b) <br />pH shall remain between 6.5 and 9.0 s.u. J . <br />Oil and grease shall not exceed 10 mg/1. J J <br />Total Dissolved Solids, mg/1 - monitoring only per Part I.B.2.b) <br />(Colorado River Basin Only) <br />Total Phosphorus (as P), mg/1 - monitoring only per Part I.B.2.b) <br />(Dillon Reservoir and Upper Bear Creek Drainages Only) <br />c) General Limitations - Active and Pos[-Mining Outfalls <br />1. There shall be no discharge of sanitary waste waters from <br />toilets or related facilities. <br />?. There shall be no discharge of floating solids or visible =oam <br />in other than trace amounts. <br />3. No chemicals are to be added co the discharge unless <br />permission for the use of a specific chemical is ;ranted by <br />the Division. <br />4. There shall be no land application of ~.raste~aacer, ocher than <br />for dust control. <br />Sae Part I.3.4, for Footnotes <br />