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<br />PART I <br />Page 1f of 19 <br />Permit No. CO-0038024 <br />n. MONITORING REQUIREMENTS <br />1. Freouencv and Sample Tvoe <br />In order to obtain an indication of the probable compliance or noncompliance <br />with the effluent limitations specified in Part 1.A, the permittee shall <br />monitor all effluent parameters at the following frequencies: <br />(a) Discharge Points 001, 002, 003, 005, 006, 007, 008, 009, and 025 <br />Effluent Parameter Measurement Frecuencv ~ Sample Twe <br />Flow, MGD Weekly <br />Total Suspended Solids, <br />Total Iron, mg/1 <br />Oil and Grease, mg/1 <br />pH, s.u. Weekly <br />Settleable Solids, ml/1 <br />Total Dissolved Solids, <br />mg/1 Monthly <br />Monthly <br />Weekly <br />Grab <br />j,/ Monthly <br />mg/1 g/ Quarterly <br />(b) Discharge Points 023, 024, 026, and 027 <br />fluent Parameter Measurement Freouencv d/ <br />Flow, PIGD <br />Total Suspended Solids, mg/1 <br />Total Iron, mg/1 <br />Oii and Grease, mg/1 J <br />Oil and Grease, mg/1 <br />nH, s.u. Weekly <br />Total Dissolved Solids, mg/1 g/ <br />'.v-hole Effluent Toxicity, Acute <br />Instantaneous <br />or Continuous <br />Grab <br />Grab <br />Visual or Grab <br />Grab <br />Grab <br />Sample Twe e/ <br />Weekly Instantaneous <br /> or Continuous <br />Monthly Grab <br />Monthly Grab <br />Weekly Visual or Grab <br />Monthly Grab <br />Grab <br />Quarterly Grab <br />Quarterly Grab <br />(See Parts I.B.2 - I.B.9) <br />Sampling for compliance with the monitoring requirements specified above shall <br />be performed at the following locations: discharge points 001, 002, 003, 005, <br />006, 007, 008, 009, 025 - as shown in Figure 3; and 023, 024, 026 and 027 - as <br />shown in Figure 5. <br />See Part I.C. for Footnotes. <br />Amended 02/28/90 Effective 04/01/90 <br />Amended 03/14/91 Effective 05/01/91 <br />Amended Effective <br />