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~~ <br />i® <br />r <br />Terra Matrix <br />May 17,1996 <br />Mr. Jce Dudash <br />Division of Minerals and Geology <br />1313 Sherman Street, Suite 215 <br />Denver, CO 80203 <br />RE: Hayden Gulch Mine, Permit No. C-80-003 <br />Documentation of OSM submittals for Technical Revisions <br />Deaz Mr. Dudash: <br />r~cr.F{V~D <br />MAY 2 6 1996 <br />.a: <br />Division of r"merafs & Geology <br />Enclosed, please Snd documentation that Hayden Gulch Coal Company (HGCC) has submitted one copy, in their <br />final form, of Technical Revision No. 62 (TR-62), Revised Shrub Density Standard and Technical Revision No. <br />65 (TR-65), Riprap Demonstrations to the Office of Surface Mining, Western Regional Coordinating Center. <br />The documentation package consists of: <br />A copy of the cover letter which accompanied TR-62 and a copy of the certified mail receipt for <br />the package, and <br />A copy of the cover letter which accompanied TR-65 and a copy of the certified mail receipt for <br />the package. <br />In addition, please find the final form of TR-62 for inclusion in the Division's permit document. <br />Please give me a call if you have any questions. <br />Sincerely, <br />TerraMatrix Inc. <br />Michael Neumann <br />Senior Scientist <br />JCW <br />enclosure <br />cc: Bob Medler - W.R Grace <br />John Weinman - TerraMatrix (w/o enclosure) <br />Project File <br />BngineeNng G Environmental Services <br />P0. Box 77408 <br />ig75 Pine Grove Road <br />Steamboat Springs, Colorado Bog77 <br />Phone g7o.87q.6z6o Fax g7o.87q.goq8 <br />Steamboat Springs Denver FoM Collins Seattle Santiago <br />