Laserfiche WebLink
i 1 <br /> November 1997 Monthly Report <br /> Page 3 <br /> that the work plan for this project requires implementation. <br /> Pride of the West Tailings <br /> The project was completed in October 1997. DMG is in agreement <br /> that this project has been completed according to the Consent <br /> Decree work plan and MLR standards. <br /> Sunnyside Mine Pool Mitigation - Alkaline Solution Injection <br /> This project was not active in November. <br /> The water pool pH, at the American Tunnel bulkhead, at the end <br /> of November was 5. 45 and the bulkhead pressure was 323 psi. <br /> Sunnyside will continue to monitor these parameters. <br /> Cement Creek Diversion and Water Treatment <br /> Cement Creek diversion and water treatment was active <br /> continuously throughout November. During November, the entire <br /> flow of Cement Creek was diverted for treatment. The treated <br /> flows for November ranged from 514 G.P.M. to 1049 G.P.M. <br /> Attached are results from flow and quality monitoring of; <br /> Cement Creek diverted for treatment (CC-1B) ; American Tunnel <br /> flow before treatment (AT-INFEL) ; dissolved metals analysis of <br /> the AT-004 discharge; and Cement Creek below the AT-004 <br /> discharge point (CC-20) for October and November samples. <br /> Mainstem Stream Monitoring and Reference Point Stream <br /> Monitoring <br /> Sunnyside sampled the reference point (A-72) on November 12 , <br /> 1997 . These results are attached. <br /> The provisional flow from the outside gage at A-72 for the <br /> November 12 , 1997 sample was 147 cfs which is in the <br /> intermediate flow category (100 < Q < 300 cfs) . <br /> The reported zinc value which is an average of the results <br /> from two labs was 442 ug/l. <br /> The index number for the October sample is calculated as follows: <br /> Xi = 442 <br /> Xf = 399 <br /> Sf = 144 <br /> Ni=(Xi-Xf)/Sf <br /> Ni=(442-399)/144 <br /> Ni= +0. 30 <br />