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11 June 2012 <br />Western Fuels- Colorado Ms Marcia L. Talvitie, P.E. RECEIVSD <br />P.O. Box 628 Colorado Division of Reclamation, Mining and Safety JUN 15 2012 <br />Nuda, Colorado 81424 691 CR 233, Suite A -2 Division of Reclamation, <br />Durango, CO 81301 Mining and Safety <br />Telephone 970/864 -2165 <br />Fax 970/864 -2168 <br />RE: Survey Data concerning Approximate Original Contours on reclaimed land west of <br />2700 Rd., New Horizon Mine, Permit C -81 -008 <br />Dear Ms Talvitie: <br />In March of 2012, you requested survey data wanting elevations on the graded <br />reclaimed backfill west of 2700 Rd. Inclosed is an Exhibit that shows the Approved <br />Approximate Original Contours minus projected topsoil thicknesses, which makes it <br />AOC on graded backfill vs Actual contours on the `graded backfill' to date. I made the <br />top of graded Bench 1 as the common data plane because there was more information <br />for top of Bench 1 than Top of Final Topsoil. <br />I hope this information fulfills your request. <br />Sincerely, <br />a oss b a <br />Chief gineer <br />F: \Eng0ATA \WP \DRMS -MEMO CONCERNING BACKFILL AOC 2012 \DRMS -MEMO CONCERNING BACKFILL AOC 2012.wpd <br />