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Mr. Bruce Humphries - 2 - February 18, 1986 <br />However, the Division cannot come to the same conclusion as you stated in your <br />cover letter of January 15, 1986, specifically that mining by Trapper, located <br />hydraulically upgradent, is not affecting groundwater quality or quantity in <br />the sampled aquifers." Well GBB-2 is contaminated and, therefore, worthless <br />as a monitoring well. GBB-1 has now only supplied two quarters of relevant <br />samples from the aquifer and may still be experiencing some degree of <br />contamination by cement. Therefore, these wells give insufficient data to <br />draw any conclusion as to the effects of mining on the aquifers. <br />Sincerely, <br />i ~~/ <br />Candace M. Thompson <br />Hydrologist <br />CMT/tgr <br />7546E <br />