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1 <br />' INTRODUCTION <br />Bookcliffs Commercial Laboratories ("Bookcliffs"), at the request of the <br />Twentymile Coal Company ("Twentymile"), has completed a column leach <br />' study of mine waste material of the Foidel Creek Mine located in Routt <br />County, Colorado. <br />t Seven coal, floor, and roof samples and two duplicate samples of mine <br />waste material were analyzed for salt load and potential toxic <br />' constituents. This study was performed using a column leach procedure <br />adapted from a similar study previously performed for the Getty Oil <br />' Company. The study, "Estimation of Salt Load from Spoil Material Based <br />on Drill Samples", was performed by H.R. Gardner of the United States <br />' Department of Agriculture, Agricultural Research Service, Fort Collins, <br />Colorado. <br />The following report describes, in detail, the analytical procedures <br />' utilized by Bookcliffs and the results of these procedures. <br /> <br /> <br /> <br />1 <br />I 1 <br />II <br />i~ <br />1 <br />' -1 <br />