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PART1 <br />Page No. 8 <br />Permit No. COG-850000 <br /> L mitatiorLs . Monitoring <br />Parameter 30-Day 7-Day IAaily Rationale Frequency <br /> Avg Avg: Max. <br /> neral Permit Requirements Continuous / <br />Flow, MGD Report NA Report Discharge Evaluation InstantaneOW2 <br /> N/A NA 6.5-9.0 Water Quality Standards Weekly <br />pH, s.u. N/A NA 10 State Effluent Regulations Weekly <br />Oil and Grease, mg/l Federal Effluent Limitation Guidelines <br /> <br />Total Sa.- vended Solids, mg/1 <br />35 NA <br />70 <br />Federal ELG Weekly <br />Y <br />Total iron, mg/l <br />Existing Sources (before <br />3.5 NA <br />7.0 <br />Federal ELG <br />Weekly <br />5/4/84) 3,0 NA 6.0 <br />New Sources (after 5/4/84) <br />l <br />Report NA <br />0.5 Federal ELG Weekly <br />Settleable Solids, mU Site Specific Limitation <br />i 4 <br />Quarterly <br />Total Dissolved Solids, mg/l • Report NA Report <br />ious <br />V ons <br />Salinity Regulat <br />Control Regulations Monthly <br />Total Phosphorus (as P), mg/1'• Report NA ar <br />NA Water Quality Standards Weekly <br />Total Recoverable Iron, ug/1 1000 NA <br />NA Various Water Quality Standards Weekly <br />Other Pollutants of Concern Various <br />Whole Effluent Toxicity (WET) <br />Stat Diff and IC25 > IWC <br />State Permit Limitations <br />Quarterly <br />Chronic <br />Acute LC50 > 100% State Permit Limitations <br />Footnotes 1-4,' , •' , and •" can be found under Part I.B.I and Part I.B.2. <br />5. Effluent Limitations and Monitoring Requirements - Acid or Ferruginous Mine Drainage <br />Sample <br />Type <br />Recorder/ <br />In-situ z <br />Grab <br />Visual 3 <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />3 Grab/Test <br />Grab <br />The above category is subject to 40 CFR Part 434 Subparts C (Acid or Ferruginous Mine Drainage). At a minimum, the <br />following limitations may apply as outlined in these subparts. <br /> Limitations Monitoring <br />Parameter 30-Day 7-Day Daily Rationale Frequency <br /> Avg. Avg._, _ Ntax. <br /> General Permit Requirements <br />Continuous / <br />Flow, MGD Report NA Report Discharge Evaluation InstantaneousZ <br /> N/A NA 6.5-9.0 Water Quality Standards Weekly <br />, s.u. <br />pH <br />N/A <br />NA <br />10 <br />State Effluent Regulations <br />Weekly <br />Oil and Grease, mg/l Federal Effluent Limitation Guidelines <br /> <br />Total Suspended Solids, mg/l <br />35 <br />NA <br />70 <br />4 <br />0 <br />Federal ELG <br />Federal ELG Weekly <br />Y <br />Weekly <br />Total Manganese, mg/1 2.0 NA . <br />Total Iron, mg/l <br />Existing Sources (before 5/4/84) <br />3.5 <br />NA <br />7.0 <br />Federal ELG Weekly <br />-yew Sources (after 5/4/84) 3.0 NA <br />NA 6.0 <br />0 <br />5 <br />Federal ELG <br />Weekly <br />Settleable Solids, ml/1 Report . <br /> Site Specific Limitations <br />NA Report <br />Salinity Regulations <br />Q?r1Y' <br />Total Dissolved Solids, mg/l • <br />Total Phosphorus (as P), mg/l •' Report <br />Report NA Various Control Regulations Monthly <br />Total Recoverable Iron, ug/1 *** 1000 NA NA Water Quality Standards Weekly <br />Other Pollutants of Concern Various NA Various Water Quality Standards Weekly <br />Whole Effluent Toxicity (WET) <br />Stat Diff and IC25 ? IWC <br />State Permit Limitations <br />Quarterly <br />Chronic <br />Acute LC50 > 100% State Permit Limitations <br />Footnotes 1-4, • , " , and "? can be found under Part I.B.I and Part I.B.2. <br />Sample <br />Type <br />Recorder / <br />In-situ z <br />Grab <br />Visual 3 <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />3 Grab/Test <br />Grab