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Tracer Inoculation of the Sunnyside Mine <br /> Page 3 <br /> SGC requests the CDPHE position on the following issues : <br /> 1) Does CDPHE endorse the concept of placing the bromide tracer <br /> in the Sunnyside Mine? <br /> 2) Will the CDPHE recognize the absence of bromide in the <br /> monitoring program (after valve closure) as evidence that <br /> water from the Sunnyside Mine is not reaching surface? <br /> 3) Will the CDPHE , through the CDPS permit renewals (which are <br /> in the drafting phase) make allowance for bromide <br /> concentrations in the discharges before valve closures? <br /> Introduction of the bromide tracer into the Sunnyside Mine is the <br /> next major work phase of the bulkhead program and SGC would <br /> appreciate a response at your earliest convenience. If additional <br /> information is needed or you wish to discuss the above report, <br /> please contact me. <br /> Sincerely, <br /> Larry Perino <br /> Superintendent-Technical Services <br /> cc: Allen Sorenson, DMG w/enclosures <br /> Chris Hayes <br />