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:- <br />Mr. Richard Hughes - 4 - July 8, 1988 <br />Mine No. 3 <br />Bedrock Wells <br />1) Refer to number 4 under general questions above. <br />Alluvial We11s <br />1) The field parameters were not measured during October 1987. Please <br />explain this omission. <br />Surface Sites <br />1) Please explain the lack of data for sites 700 and 900 in the second <br />quarter Hydrology Report. Also, CYCC must develop a plan to ensure <br />that the CYCC/USGS Sites 700 and 900 are monitored as required. <br />Please refer to the above comments regarding this issue. <br />2) The report indicates that the March 1988 stage level for Station 29 <br />exceeded the boundaries of the existing rating curve: Accurate <br />discharge values must be obtained for all sampling events: Please <br />provide a plan to revise the curve or to use an alternate discharge <br />measurement method when the existing rating curve limits are not <br />adequate: <br />3.) Please explain the reason for missing the March 1988 full suite <br />water quality sample (Station 29). The approved plan requires such <br />a measurement if the stream is ice-free. <br />We look forward to your response to this letter: Thank you for your <br />cooperation. <br />Si ncerely~ -~' <br />' / ~ // ,. <br />%, ,~ ,. <br />/ / <br />'~/ D/ ~ A erry <br />G" ation Specialist <br />DAB/yjb <br />cc: Mike Savage <br />8627E <br />