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Page 1: <br /> <br />COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale -Page 13 Permit No. CO-0045675 <br />VI. TERMS AND CONDITIONS OF PERMIT <br />A. Determination of Eltluent Limitations (Cont.) <br />1. EtNuent LimNations: (Cont.) <br />Table VI-16 - ERluent Limitations, Discharge Point 0016 <br />Parameter Limitations Rationale <br />Flow, MGD (gpm) 0.36 (250) N/ Design/F/owASSessment <br />Total Suspended Solids, mgA 30/45 g/ State EAluent Regulations <br />Oil and Grease, my1 10.0 sl/V State EtBuent Regulatons <br />pH, s.u. 6.5 - 9.0 re/ Water Quality Standards <br />Chronic WET Testing Report Statistical !J State Discharge PermN Regulations <br /> DiNerence <br />Potentially Dissolved Aluminum,myl 0.087/2.4 ¢/ Antdegradation-Based/WQS-Based <br />Total Arsenic, mg/1 Report /0.027 6/ Antidegradation-Based Limn <br />PotentiallyDissoNedCadmium,mg/1 0.00053/0.020 ¢/ Antidegradation-Based/WQS-Based <br />Potentially Dissolved Copper,mg/1 0.0053/0.038 6/ Antidegradation-Based/WQS-Based <br />Dissolvedlron, mg/1 0.30/Report ¢/ Antidegradation-Based LimN <br />Total Recoverable Iron, mg/1 1.0 /Report ¢/ Antidegradation-Based Limit <br />PotentiallyDissoNedLead,mg/1 0.0015/0.15 b/ Antidegradation-Based/WOS-Based <br />Dissolved Manganese, mg/1 0.050 /Report ~ Antidegradation-Based Limit <br />Total Recoverable Manganese, mg/I 1.6 /Report ¢/ Antidegradation-Based Limit <br />Total Radium 226+228, pCV1 Report / 5.0 ~/ Antidegradation-Based Limit <br />Total Selenium, mg/I Repoli / 0.0053 ~/ Antidegradation-Based Limit <br />Potentially Dissolved Silver,mg/1 0.000030/0.0029 ¢/ Antidegradation-Based/WQS-Based <br />Total NaturalUranium,myl 0.92/4.9 -¢/ Antidegradation-Based/WQS-Based <br />Potentially Dissolved Zinc, mg/1 0.051 / 0.26 ¢/ Antidegradation-Based /WQS-Based <br />Total Fluoride, mgA Report / 2.7 ¢/ Antidegradation-based Limit <br />Total SuNate, mg/1 283 /Report ¢/ Antidegradation-Based Limit <br />@/ 3lYDay Average f1 Minimum-Maximum @/ 34Day Average/]-Day Average <br />p/30-Day Average/Daily Maximum Daily Maximum <br />t/ For every outlall with oil and grease monitoring, in the event en oil sheen or Ooafing oil is observed, a grab sample shall be <br />collected, analyzed, and reported on the appropriate Discharge Monitoring Report (DMR). In addition, correcOve action shall be <br />taken immediately to mitigate the discharge of oil and preese. A description of the corrective action taken should be included with <br />the DMR. <br />