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July 1999 Monthly Report <br /> Page 3 <br /> • Tailings Pond No. 4 Surface Drainage Modification <br /> This project was not active in July. <br /> • Tailings Pond No. 4 Upland Groundwater Diversion <br /> Discussions are ongoing with BLM to implement this project in exchange for an area to <br /> place material from their Lackawanna project. <br /> Cement Creek Diversion and Water Treatment <br /> Following notice, Cement Creek diversion and water treatment was suspended on June 1, <br /> 1999. Sunnyside will evaluate whether resumption of Cement Creek diversion and <br /> treatment will occur in September. <br /> The July 1999 monitoring results for; dissolved metals in the AT-004 discharge; Cement <br /> Creek (CC-1); American Tunnel flow before treatment (AT-INFEL); and Cement Creek <br /> below the AT-004 discharge point (CC-20) are attached to this report. Since Sunnyside <br /> is not diverting and treating Cement Creek,the reported values (CC-1) are quality and <br /> flows for Cement Creek near the diversion. <br /> Mainstem Stream Monitoring and Reference Point Stream Monitoring <br /> Sunnyside sampled the reference point (A-72) and the other three gaging stations (A-68, <br /> M-34, and C-48) on July 7, 1999. Results from these samples are attached. While it was <br /> BOR's scheduled sample date for A-68, M-34, and C-48, Sunnyside sampled the sites <br /> because BOR personnel could not be available. BOR will in return sample the sites in <br /> August when Sunnyside was scheduled. <br />