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=r _ <br />J <br />PART I <br />Page ld of 19 <br />Permit No. CO-0026981 <br />B. MONITORING REQUIREMENTS <br />1. Frequency and Sample Type <br />In order to obtain an indication of the probable compliance or <br />noncompliance with the effluent limitations specified in Section A, <br />the permittee shall monitor all effluent parameters at the following <br />frequencies. <br />(a) Discharge Points 001, 002, 003, 004, and 005 <br />Effluent Parameter Measurement Frequency d/ Sample Type e/ <br />Flow, MGD Weekly Instantaneous <br /> or Continuous <br />Total Suspended Solids, mg/1 3 X Monthly Grab <br />011 and Grease, mg/1 f/ Weekly Visual* or Grab <br />pH, s.u. Weekly Grab <br />Total Cadmium, mg/1 ** 3 X Monthly Grab <br />Total Copper, mg/1 ** 3 X Monthly Grab <br />Total Lead, mg/1 ** 3 X Monthly Grab <br />Total Mercury, mg/1 3 X Monthly Grab <br />Total Zinc, mg/1 3 X Monthly Grab <br />Total Dissolved Solids, mg/1 ~/ hl Quarterly Grab <br />Total Cyanide, mg/1 Monthly Grab <br />Reporting of the above data for 001 <br />a quarterly basis for 002, 003, 004, <br />specific requirements. <br />shall be on a monthly basis, and on <br />and 005. Refer to Part I. D.2 for <br />Sampling by the permittee for compliance with the monitoring <br />requirements specified above shall be performed at the following <br />location(s): discharge points 001, 002, 003, 004, and 005, the outfalls <br />which are prior to mixing with Canyon Creek, as shown in figure 3. <br />Monitoring by the Division for the purpose of compliance and/or <br />enforcement of the effluent limitations shall be performed as per <br />"Sample Type" specified above. <br />* If a visible sheen is observed, a grab sample shall be taken. <br />** For the period immediately to December 31, 1988, analysis is to be for the <br />total metal. For the period January 1, 1989 through December 31, 1990, <br />analysis shall be for the total recoverable fraction for cadmium and <br />copper; with analysis as total for lead, mercury, and zinc. For the period <br />January 1, 1991 through June 30, 1992, analysis shall be for the total <br />recoverable fraction for cadmium, copper, and lead; with analysis as total <br />for lead, mercury, and zinc. <br />See Part I.C. for Footnotes. <br />Code: 1 - 4 Date: 1-84, revised 12-87 Amended ~ /4 $? <br />Corrected O1 25 9 <br />