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Oil and Grease Visual NA NA NA NA 2x/month VisuaI2 <br /> 84066 <br /> l and Grease, mg/t NA NA 10 NA Contingene Grab <br /> 3582 <br /> Site Specific Limitations <br /> Total Flow3, Report Continuous'/ <br /> 515001 MG Qrtr Total NA NA NA Instantaneous, Calculated <br /> Monthly' <br /> Electrical <br /> Conductivity (EC), dS/m Report NA NA NA Quarterly Grab <br /> 00094 <br /> Manganese, <br /> Dissolved, ug/t Report NA Report NA 2x/month Grab <br /> 1056 <br /> Selenium, Potentially <br /> Dissolved, ug/l Report NA Report NA 2x/month Grab <br /> 1323 <br /> Total Recoverable <br /> Uranium, ug/t Report NA Report NA 2x/month Grab <br /> 22708 <br /> 1: Flow-The chronic flow limit is equal to the flow rate provided in the permit application, and will be <br /> stated on the certification. If power is not available, flow may be measured on an instantaneous basis. <br /> 2: Oil and Grease: -A visual observation of the discharge for each permitted outfall must be made <br /> 2 times per month. In the event an oil sheen or floating oil is observed, a grab sample shall be <br /> collected, analyzed, and reported on the DMR. in addition, corrective action shall be taken <br /> immediately to mitigate the discharge of oil. <br /> 3: Total Flow-Total flow is the cumulative flow of the discharge for the quarter in million gallons. If <br /> continuous flow monitoring is not conducted, the permittee must calculate the total flow for the <br /> month or quarter using the 30-day average flow (measured) and the number of days the facility <br /> discharged within the month or quarter. <br /> Stormwater Monitoring Requirements <br /> Permit Limitations and/or Monitoring Requirements apply to outfall 002A as outlined in the Permit in <br /> Part I.C.2 and Parts I.G through I.Q. <br /> On the effective date of this certification, the West Farm Pit is subject to the monitoring requirements <br /> identified below at each discharge point of stormwater from the facility. <br /> A. Visual monitoring, Port 1.1.1 <br /> Per Part 1.1.1 of the permit, the permittee must collect a stormwater sample from each outfalt (or a <br /> substantially identical outfall pursuant to Part I.H.1 of the permit)and conduct a visual assessment <br /> of each of these samples once each quarter for the entire permit term. <br /> B. WQBEL/Water Quality Standards Monitoring, Part 1.1.4 <br /> Discharges authorized under this permit must be controlled as necessary to meet applicable water <br /> quality standards. <br /> Discharges authorized under this permit must be controlled as necessary to meet the applicable <br /> water quality standard for potentially dissolved manganese, potentially dissolved selenium, and <br /> total recoverable uranium at the point of discharge(end of pipe). <br /> Page 2 of 3 <br /> 4300 Chem Creek Drn e S.Dem er.CO S0246-15'0 P 303-692-2000 \% �m Colorado got`cdp11c1t%gcd <br /> John\\ Ifickenlooher,Omernor i Fair} %Volk.N1D.3FSPFF.F\ecuu\e Director and Chief Medical 0111cer <br />