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999 <br />November 5, 1999 <br />r <br />SHEPHERD MILLER <br />Mr. James Dillie <br />Colorado Division of Minerals & Geology <br />1313 Sherman, Room 215 <br />Denver, CO 80203 <br />Deaz Mr. Dillie: <br />SMI #100267 <br />Please find enclosed a copy of the preliminary engineering design report enti.led "West Pit <br />Hydraulic Bazrier, Preliminary Design Report, San Luis Project." The document ~.ddresses some <br />of the initial design issues associated with installation of a slurry wall in [he vicin~ ty of the West <br />Pit. A similar, but less detailed, proposal was submitted to the Colorado Department of Public <br />Health and Environment on September 17, 1999. <br />If you have any questions, or require additional information, please give me a call. <br />Sincerely, <br />SHEPHERD MILLER, INC. , <br />.~ /\J <br />Barry L. Carlson, P.E. <br />Project Engineer <br />BLC:mtb <br />Attachment <br />cc: Ron Zumwalt <br />Bill Lyle <br />Roger Flynn <br />Dan Randolph <br />Mike McGowan <br />Lori Potter <br />Maria Mondragon-Valdez <br />Dean Massey <br />p \100?6MvmmuniueonWilli<_slurry eo< <br />Environmental v Engrnerring Contu/tanu <br />3801 Automation Way, Suite 100 <br />Fort Collins. CO 80525 <br />Phane:(970)223-9000 <br />Fax: (970)223-7171 <br />www.shepmill.com <br />+SBo~oa~ 9 ye1augq 1o uorsin14 <br />6661 80 ApN <br />a3h13~3a <br />