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^, Mr. Robert Liddle • <br />' April 4, 1985 <br />Page 2 <br />mine inflow studies conducted in November, 1983 and June, 1984, Snowmass has <br />more than adequately met this discharge requirement. As discussed before, <br />Snowmass will continue to pump much more than 64,800 GPD of water through <br />1986, thereby satisfying the worst case prediction of inflows into the mines <br />from North and Middle Thompson Creeks. <br />3) Recent snow measurements in this area indicate that the snowpack in the high <br />country is 5-15% above normal. It appears that there will be adequate stream <br />flows for the 1985 irrigation season and it is doubtful that there will be a <br />call on North or Middle Thompson Creeks this summer. <br />Given these facts, Snowmass feels that delaying the filing of a formal augmentation <br />plan will allow us to obtain more complete stream flow data in order to file a <br />realistic augmentation plan. In addition, given the existing status of mining <br />operation, it is apparent that Snowmass will greatly supplement the flow in North <br />Thompson Creek rather than depleting it during this period. <br />If you have any questions or comments concerning this request, please feel free <br />to.contact me here at the mine office. <br />Sincerely, <br />Scott Jon <br />Enviromm~ental Engineer <br />SJ:mgc <br />pc: D. L. Fenwick <br />Mike Kennedy <br />Joe Oliver <br />Dave Robbins <br />Jim Stover <br />File <br />