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PART I <br />Page 21 <br />Permit No. COG-600000 <br />• C. MONTfORING REQUIREMENTS <br />1. Freaurncv and Sample Tvoe <br />h. cont. <br />(2) Used Pips, tanks, or other similaz vessels: <br />Efflurnt Parameter Measuremrnt Freaurncv Sample Tvoe <br />Flow, gpm Twice per Discharge Instantatteotu <br />Total Suspended Solids, mg/f Twice per Discbazge Grab <br />Chemical Oxygen Demand, mg/f Twice per Discharge Grab <br />Total Recoverable Iron, mglf Twia per Discharge Grab <br />BTFJC, mg/f Twia per Dischazge Grab <br />Benzene, mg/P Twia per Dischazge Grab <br />Total Residual Chlorine, mglf See I.B.2.c.(4) Twin per Dischazge Grab <br />pH, s.u. Twia per Dischazge Grab <br />Oil and Grease, mglP Twice per Discharge Visual See 1.D.13. <br />Total Phosphorus as P, mg/f See I.C.2. Monthly Grab <br />• Twia per discharge sampling shall be conducted az the beginning and end of the testing period. <br />i. Facilities dischazging super chlorinated wazer (50-500 mg/f) from potable wazer litter for the <br />disinfection of these lines in a routine or planned situation shall monitor all effluent <br />pazameters listed az the following fregttenries using the listed sample type unless different <br />frequencies are listed on the facility certification. <br />Effluent Parameter Measurement Frtwttency Sample Tvoe <br />Flow, gpm Twia per Discharge Instantaneous <br />Total Residual Chlorine, mg/f See I.6.2.c.(4) Twice per Discharge Gtab <br />Twice per discharge sampling shall be conducted az the beginning and end of the testing pttiod. <br />• <br />