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r <br />PART I <br />Page 4 of 16 <br />Permit No.: CO-0032638 <br />• A. TER.+1S AND CONDLTIONS (Continued) <br />4. Monitoring Requirements <br />In order to obtain an indication of the probable compliance or <br />noncompliance with [he effluent limitations specified in Part I.A. 1., <br />the permittee shall monitor all effluent parameters a[ [he following <br />required frequencies:* <br />a. Effective during periods of no precipitation <br />Effluent Parameter Measurement Frequency c/ Sample Type e/ <br />Flow (MGD) Weekly Instantaneous or <br />Continuous <br />Total Suspended Solids <br />(mg/1) Monthly Grab <br />Total Iron (mg/1) Plonthly Grab <br />Oil~and Grease (mg/1) Weekly Visual or Grab <br />pR (s.u.) Weekly Grab <br />• Salinity g/ Quarterly f/ h/ Grab <br />b. Effective during periods of precipitation-caused discharge. <br />Effluent Parameter Peasurement Frequency d/ Sample Type e/ <br />Flow (MGD) Weekly Instantaneous or <br />Continuous <br />Oil and Grease (mg/L) Weekly Visual or Grab <br />pH (s.u.) Weekly ."Grab <br />Salinity &/ Quarterly f/ h/ Grab <br />Settleable Solids (ml/1) i/ Weekly Grab <br />Monitoring samples taken in compliance with the monitoring requirements <br />specified above shall be taken at the following locations: Discharge <br />No's. OOI, 002 and 003, as 81T'own in Figure 1 on Page 16a. <br />c/ through i/ - Sec Part I.A.S. <br />Coal-Active 3/83 <br />*Tne permittee shall inspect discharge point ti~0U3, a[ a minimum of monthjy <br />intervals during the winter freeze period of November 1 through "!arch 15 of <br />ach }•ear. Should a discharge be observed at any time, sampling shall be <br />~rformed at the required frequencies. / nnnnAAAA <br />Amended ~ ,{•~:ea <br />