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PARTI <br />Page No. 8 <br />Permit No. COG-850000 <br /> Limitations Monitoring <br />Parameter 30-Day 7-Day Daily Rationale t <br />Frequency <br /> Avg. Avg. Max. <br />---------------------------------------------General Permit Requirements-------------------------------------------------- <br />Flow, MGD <br />Report <br />NA <br />Report <br />Discharge Evaluation Continuous / <br />2 <br />Instantaneous <br />pH, s.u. N/A NA 6.5-9.0 Water Quality Standards - Weekly <br />Oil and Grease, mg/1 N/A NA 10 State Effluent Regulations Weekly <br />------------------------------------------Federal Efflu ent Limi tation Guidelines-------------------------------------------- <br />Total Suspended Solids, mg/1 35 NA 70 Federal ELG Weekly <br />Total Iron, mg/1 <br />Existing Sources (before 3.5 NA 7.0 Federal ELG Weekly <br />5/4/84) 3.0 NA 6.0 <br />New Sources (after 5/4/84) <br />Settleable Solids, ml/1 Report NA 0.5 Federal ELG Weekly <br />------------------------------------------------Site Sp ecific Limitations---------------------------------------- ------------- <br />Total Dissolved Solids, mg/I * Report NA Report Salinity Regulations Quarterly a <br />Total Phosphorus (as P), mg/1 ** 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 />Chronic Stat Diff an d IC25 > IWC State Permit Limitations Quarterly <br />Acute LC50 > 100% State Permit Limitations <br />Footnotes 1-4, * , ** ,and *** can be found under Part T.B.1 and Part I.B.2. <br /> <br />~J <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 s <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 1 <br /> Avg. Avg. Max. <br />---------------------------------------------General Pe rmit Requirements -------------------------------------------------- <br />Flow, MGD Report NA Report Discharge Evaluation Continuous / z <br />Instantaneous <br />pH, s.u. N/A NA 6.5-9.0 Water Quality Standards Weekly <br />Oil and Grease, mg/1 N/A NA 10 State Effluent Regulations Weekly <br />-----------------------------------------Federal Effluent Limitation Guid elines-------------------------------------------- <br />Total.Suspended Solids, mg/1 35 NA 70 Federal ELG Weekly <br />Total Manganese, mg/1 2.0 NA 4.0 Federal ELG Weekly <br />Total Iron, mg/1 <br />Existing Sources (before 5/4/84) 3.5 NA 7.0 Federal ELG Weekly <br />New Sources (after 5/4/84) 3.0 NA 6.0 <br />Settleable Solids, ml/1 Report NA 0.5 Federal ELG Weekly <br />-------------------------------------------------Site Specific Limitations----------------------------------------- ----------- <br />Total Dissolved Solids, mg/1 * Report NA Report Salinity Regulations Quarterly a <br />Total Phosphorus (as P), mg/1 ** Report NA Various Control Regulations Monthly <br />Total Recoverable Iron, ug/I *** 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 />Chronic Stat Diff an d IC25 > IWC State Permit Limitations Quarterly <br />Acute LC50 > 100% State Permit Limitations <br />Footnotes 1-4, * , ** ,and *** can be found under Part I.B.1 and Part I.B.2. <br />Sample <br />Type <br />Recorder / <br />In-situ z <br />Grab <br />Visual' <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />Grab <br />3 Grab/Test <br />Grab <br />