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PART I Page lj of 14 Permit No. CO-0027154 MONITORING REQUIRFxFrrrS 1. Frecuencv and Sample Twe For Ou tfalls 001. 005. 007 and 019 a) Outfalls 001 and 007. affluent Parameter Measurement Frecuenc y J Sample Type 'low, MGD Weekly Instantaneous of Continuous Loral Suspended Solids, ~Three/tionth Crab Total Recoverable Iron, mg/1 Three/Honth Grab Total Recoverable Manganese, mg/1 Weekly Crab ?otentially Dissolved Copper, mg/1 n/ Three/Month Grab 'otentially Dissolved Silver, mg/1 J Monthly Grab :lectrical Conductivity, umho/cm Three/Month Grab ~H, s.u. Weekly Grab )il and Crease, mg/1 Weekly Visu:.l J mole Effluent Toxicity, Chronic Quarterly 3 Composites/Test b) Qutfall 005 'ffluent Parameter Measurement Frecuenc v ~ Sample Tvoe 'low, MCD Weekly Instantaneous or Continuous oral Suspended Solids, Three/Month Grab oral Recoverable Iron, mg/1 Three/Month Crab oral Recoverable Manganese, mg/1 Weekly Grab ocentially Dissolved Copper, mg/1 E/ Three/Month Grab 'otentially Dissolved Silver, mg/1 }3/ Three/Month Grab :lectrical Conductivity, umho/cm Three/Month Crab H, s.u. Weekly Grab it and Crease, mg/1 Weekly Visual J hole Effluent Toxicity, Chronic Quarterly 3 Composites/Test Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be taken at the following locations: outfalls 001 and 007 - in the culverts prior to the effluent flow meas uring devices, 005 - at the effluent flow measuring device. c) Outfall 019 ffluent Parameter Measurement Frecuencv J Sample Twe low, MGD Monthly Calculated ~tal Recoverable Manganese, mg/1 Monthly Calculated ~e combined total flow from outfalls 001, 005 and 007 shall be calculated and reported as the low from outfall 019. Amendment No. 1 Issued 11/03/93 Effective O1 Amendment No. 2 Issued o7./f-7 ~ Effective D~,o/•~