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Exhibit 19 <br />Golden Eagle Mine <br />Supplemental <br />Bond Calculations <br />1. Culvert Removal: <br />90' (42" cmp) x $8.23/LF = $ 741 <br />30' (36" cmp) x $6.58/LF = 197 <br />150' (24" cmp) x $4.93/LF = 740 <br />Total $1,678 <br />2. Sealing Ground Water Monitoring Wells: <br />Wells PAW-1 through PAW-7 included in the New Elk Mine Bond <br />Estimate. <br />3. Non-coal Waste Removal: <br />25~' x 250' war~te area x 3' avg. depth of trash x 1 yd3/27 <br />ft x $4.86/yd = $33,748 <br />'J <br />~l~Y <br />