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Part I <br />Page No. 5 <br />TERMS AND CONDITIONS (continued) <br />Limits £or Outfall OOSB -Limits for Atmual Precipitation Exemption from <br />"Nn DischarPe" from the VT,F to Areaua C'nilch as measured at A(;-07.5. <br />Permit No.: CO-0046348 <br /> . - ' -- Dischar a Limitations' - - <br />Effluent Parameter - <br />` ~30-Da .Avera e <~-' <br />~ ~ ~ Dail Max: <br />Flow MGD Re ort Re ort <br />TSS m 20 30 <br />Oil and Grease m NV 10 <br />Ammonia Total I 1 as N Re ort R ort <br />Co er Potentiall Dissolved 150 300 <br />Lead Potentiall Dissolved I 300 600 <br />Mercu Total I 1 2 <br />Nickel Potentiall Dissolved Re ort Re ort <br />C anide Free I Re ort Re ort <br />Aluminum Potentiall Dissolved I Re ort Re ort <br />Cadmium Potential] Dissolved I 50 100 <br />Iron Total Recoverable Re ort Re ort <br />Man anese Potential] Dissolved /I Re ort Re ort <br />Zinc Potential] Dissolved 1 750 1 500 <br />H su minimum-maximum NA 6.0-9.0 <br />NV =None Visible. In the event an oil sheen or Floating oil is observed, a grab sample shall be collected, analyzed, reported, and evaluated relative to [he 10 <br />mg/I daily maximum value. N/A =Nor Applicable. <br />2. Recr Management Practices <br />The permittee shall take all reasonable precautions to prevent any point source discharge into surface waters of the State <br />except as authorized through the terms and conditions that have been assigned [o specific discharge points that have been <br />identified in the permit. Any cyanide contaminated waters that must be removed from the leach facility liner leak detection <br />collection points, must be disposed of in a matmer that will avoid any possible entry into surface waters, either directly, or <br />through a hydraulic connection to groundwater. The pennittee shall ensure that the excavation, movement and placement of <br />any materials that might be contaminated with cyanide or other environmental pollutants is carried out in a manner which will <br />avoid any dischazge of pollutants to surface waters of the State. <br />B. MONITORING REQUIREMENTS <br />1. Frem_~ency and Sam? le Tn e <br />Monitoring will be required as shown in the following tables. Tn the selection of monitoring frequency for each parameter, <br />several factors were considered, including the frequency of detection and level of the pollutant found in past monitoring, the <br />level of the corresponding effluent limit, the potential toxicity of the pollutant, and the need for accuracy in the measurement of <br />the pazameter. I£ the results of monitoring performed in compliance with the specified frequencies, demonstrate that an <br />alternate frequency would be more appropriate, the permit maybe reopened, subject to the provisions of the tz em,lar,~ ~*,~ fcr the <br />State D;.ccharge Permir System, in order to incorporate that frequency. <br />For dischazges, which flow intemuttently, samples must be collected at least once within the calendaz period that is delineated <br />by the monitoring frequency, whenever any dischazge occurs within that calendaz period. <br />For Outfall OOlA, no special sampling restrictions related to stotmwater apply. However, the data that is collected must <br />provide an accurate representation of the quantity and quality of the water flowing past the point. If samples aze collected when <br />direct surface runoff resulting from rainfall is observed in the flow being monitored, this must be noted and reported on the <br />quarterly DMR. <br />