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c <br /> <br /> <br />Letter to Curtis Bernhardt -2- April 26, 1997 <br />All parameters must be analyzed to determine their dissolved <br />concentration. The field parameters of pH, temperature, electrical <br />conductivity, and depth to water must be determined at the time the <br />samples are collected. Best management practices must be employed in <br />the collection of the samples, particularly in terms of decontamination <br />of sampling equipment prior to sample collection. The Division will <br />expect to receive the results of second quarter 1997 sampling by no <br />later than July 1, 1997. <br />In another matter, recent heavy snows in the vicinity of the Gold Hill <br />Mill and the potential for additional heavy precipitation make it <br />imperative that the spray evaporation system in the tailing pond be <br />operated for at least 8 hours every day until such time that there is <br />insufficient water in the pond to charge the pump. The spray <br />evaporation system and the land application system are the subject of <br />an inspection report (inspection by Gary Curtiss, April, 1997) to be <br />sent under separate cover. You are reminded that the spray evaporation <br />system is the primary water elimination system at the Gold Hill Mill, <br />and that the land application system is to be used only if needed to <br />maintain adequate freeboard in the Hazel-A adit and the tailing pond. <br />If the land application system is used, the water sampling and analysis <br />plan detailed in the permit will have to be initiated. <br />If you have any questions, please contact me. <br />Sincerely, <br />,., <br />i• ,~ ~ <br />~ G j /G ` ~. <br />Allen C. Sorenson <br />Reclamation Specialist <br />CERTIFIED MAIL N0. P 076 556 493 <br />Return Receipt Requested <br />cc: Gary Curtiss, DMG `~ <br />Earl Madsen ~ ~~ <br />John Miner /~~ ~ ~`~ ~ % cr1 <br />Bob Mason <br />Mark Steen <br />Doug Parker <br />C.\wP51\GGLDHI LL Gu <br />