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1995 Annual Update <br />Sunnyside Mine Bulkheads <br />Page 2 <br />o DMG has been an active participant in negotiation <br />discussions so that all regulatory issues can be addressed <br />simultaneously. <br />COMMITMENT #2 <br />Tracer use has been removed from SGC's commitment list due to the <br />potential for introducing toxicity into waters of the State at the <br />concentrations required for tracer detection. All parties have <br />agreed to the elimination of tracer usage as a permit condition. <br />All other reporting requirements for this commitment remain intact. <br />COMMITMENT #3 <br />This commitment was not fulfilled during the 1995 reporting year <br />but remains as a condition of valve closure for the American Tunnel <br />bulkhead (currently under construction). This commitment will be <br />fulfilled during the 1996 report year. <br />COMMITMENT #4 <br />This commitment was fulfilled by SGC during the 1995 reporting <br />year. A plan to characterize the conjunctive flow of Cement Creek <br />was submitted, approved and implemented. The resulting <br />investigation and study concluded that conjunctive flow is <br />basically variable only by the amount of surface flow change in <br />Cement Creek (measured at CC1) . A request was made to and approved <br />by DMG to accept the flow measurements at CC1 as representative of <br />conjunctive flow. <br />General Program Update: <br />Attached in the Appendix (B2 -B6) is the modified monitoring <br />and reporting requirements for this section of the annual <br />report. <br />- The American Tunnel bulkhead is not constructed and the Terry <br />Tunnel valve is open. Therefore, all data collected to -date <br />(4 sample sessions for most sites) is background data. <br />- Tracer inoculation and monitoring has been eliminated from <br />the program requirements. <br />- Sampling during the 1994 field season consisted of visiting <br />each identified site twice. During each visit, samples were <br />taken for metals analysis and field parameters were measured <br />if flow existed. This exceeds the minimums specified in the <br />monitoring program as metals analysis was required for only 20 <br />percent of the sites during this and subsequent field seasons. <br />