2001-12-11_PERMIT FILE - C1982056A (3)

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'.T I t..ge lj of 14 Permit No. CO-0027154 B. MONITORING REQUIREMENTS • 1. Frequencv and Sample Tune For Outfalls 001. 005. 007 and 019 a) Outfalls 001 and 007 Effluent Parameter Measurement Freouenc y ~ Sample Tyke Flow, MGD Weekly Instantaneous or Continuous Total Suspended Solids, Three/Month Grab Total Recoverable Iron, mg/1 Three/Month Grab Total Recoverable Manganese, mg/1 Weekly Grab Potentially Dissolved Copper, mg/1 n1 Three/Month Grab Potentially Dissolved Silver, mg/1 ~ Monthly Grab Electrical Conductivity, umho/cm Three/Month Grab pH, s.u. Weekly Grab Oil and Grease, mg/1 Weekly Visual J Whole Effluent Toxicity, Acute Quarterly Grab (See Part I.B.4.a) - g)) Whole Effluent Toxicity, Chronic Semi-annual Composite Through June 30, 1996 (See Part I.B 4.h)) b) Outfall 005 Effluent Parameter Measurement Frecuency d/ F1 MGD Weekly T~1 Suspended Solids, Three/Month Total Recoverable Iron, mg/1 Three/Month Total Recoverable Manganese, mg/1 Weekly Potentially Dissolved Copper, mg/1 n/ Three/Month Potentially Dissolved Silver, mg/1 ~ Three/Month Electrical Conductivity, umho/cm Three/Month pH, s.u. Weekly Oil and Grease, mg/1 Weekly Whole Effluent Toxicity, Acute Quarterly (See Part I.B.4.a) Whole Effluent Toxicity, Chronic Semi-annual Through June 30, 1996 (See Part I.B 4.h)) Samole Tvoe Instantaneous or Continuous Grab Grab Grab Grab Grab Grab Grab Visual Grab - g)) Composite Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be taken at the following locations: outfalls 001, 005, and 007: in the culverts prior to the effluent flow measuring devices. c) Outfall 019 Effluent Parameter Measurement Frequency ~ Sample Tie Flow, MGD Monthly Total Recoverable Manganese, mg/1 Monthly Calculated Calculated The combined total flow from outfalls 001, 005 and 007 shall be calculated and reported as th~low from outfall 019. Amended L1/03/93 Effective 01/01/94