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INTERNAL MEMO <br />TO: Jim Stark 16 May 2005 <br />FROM: Jim Burnell <br />SUBJ: Deserado (C-1981-018) 2004WY AHR Review <br />The review of the Deserado 2004 AHR has been completed. The report is satisfactory <br />and meets the operator's obligations. <br />Following is a review as per the predictions made in the PHC. <br />(1) PHC: Very little water will be pumped to the surface from the underground <br />mine. <br />This prediction is accurate. No water was pumped from the mine in the 2004 WY. <br />(2} PHC: Groundwater inflow into the mine will be very [ow. <br />The prediction is accurate. The AHR reports small (6-8 gpm), localized, short-duration <br />inflows. The mine is very dry. <br />(3) PHC: Mine inflows are predicted to not exceed 5 to 10 gpm. <br />The prediction appears to be accurate. The statement is made in the AHR that average <br />inflows have been 6-8 gpm. <br />(4)PHC: The local groundwater table may be lowered as mining proceeds. <br />The prediction is accurate. As occurred in the eastern mining district, local water levels <br />in the western district have dropped as mining approached and dewatered. Wells up-dip <br />from the mining have dropped also. <br />(5) PHC: The impact of mining on the quantity of water in the White River will be <br />minimal. <br />The prediction is accurate. The operator withdrew water from the White River using <br />existing water rights. Water withdrawal was slightly less than projected. <br />