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F <br /> r' <br /> • PART I <br /> Page if of 19 <br /> Permit No. CO-0000248 <br /> A. TERMS AND CONDITIONS <br /> 4. Effluent Limitations Concentrations and Their Relation to Discharge <br /> Flow Levels for the All Seasons Period <br /> d) Any two consecutive exceedances of the total cyanide 0.008 mg/l <br /> water quality standard and/or of the total recoverable copper 0.005 <br /> mg/l water quality standard at Station 9 (Tenmile Creek at Frisco <br /> Bridge) shall require an immediate reduction in flow sufficient to <br /> result in water quality standard compliance. It is suggested that <br /> a reduction in flow and/or change in treatment may need to be <br /> implemented by Climax when concentrations at discharge point 001 <br /> approach or exceed levels of 0.032 mg/l for one total cyanide <br /> sample, and/or 0.026 mg/l for two samples of total recoverable <br /> copper. <br /> e) Monitoring requirements at the Frisco Bridge station may cease <br /> after it has been demonstrated that no exceedances for any two <br /> consecutive samples have occurred for the total cyanide 0.008 mg/l <br /> water quality standard and/or for the total recoverable copper <br /> 0.005 mg/1 water quality standard. Once this water quality <br /> standard compliance for Tenmile Creek at Frisco Bridge has been <br /> demonstrated, then an increase in flow at discharge point 001 may <br /> be resumed. This increase in flow may also be resumed when it has <br /> been demonstrated that concentrations at discharge point 001 have <br /> been reduced to levels below 0.032 mg/l for total cyanide and/or <br /> below 0.026 mg/l for total recoverable copper, in addition to <br /> demonstrating compliance with the Segment 14 standards in two <br /> consecutive samples at Frisco Bridge. <br /> 5. Annual Groundwater Reports <br /> The annual groundwater report is to include a description of the method <br /> of sampling and a listing of the analyses performed on the water <br /> removed from background and down-gradient groundwater quality <br /> monitoring points. As a minimum, the following analyses shall be <br /> performed on a quarterly basis and reported on a yearly basis for each <br /> monitoring point. <br /> a) Total Dissolved Solids (mg/1) <br /> b) pH (s.u.) <br /> c) COD (mg/1) <br /> d) Total Cyanide (mg/1) <br />