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_~ <br />~' <br />T e r r a M a t r i x <br />January 5, 1995 <br />III IIIIIIIIIIIIIIII <br />999 <br />nrr~l-1\/G~ <br />JAS! 0 Q lyyb <br />Mr. Joe Dudash ~~VISiQ" 4. inn ici aio .~ 4a.W:7~V <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Re: Technical Revision No. 65, Riprap Evalua[ion, Hayden Gulch Mine Permit No. C-80- <br />003, Hayden Gulch Coal Company <br />Dear Mr. Dudash: <br />As requested in the Division's letter of December 28, 1995, TerraMatrix is providing a <br />supplemental submittal which provides an analysis of riprap for the wes[ern ditch and pond HG <br />8 emergency spillway. The public notice for completeness has been changed per your <br />suggestions of December 21, 1995 and was sent [o you under separate cover. As soon as <br />TerraMa[rix receives confirmation of the public notice, the confirmation will be forwarded to <br />you. <br />As a minor point of clarification, in your letter dated December 28, 1995, <br />Hayden Gulch Mine Permit No. C-80-003, Hayden Gulch Terminal, Inc. <br />Hayden Gulch Mine is still owned by the Hayden Gulch Coal Company <br />loadout facility is presently owned by the Hayden Gulch Terminal, Inc. <br />deleted from Permit No. C-80-003 via Technical Revision No. 61. <br />Please call me if you have any questions. <br />Sincerely, <br />TerraMatrix, Inc. <br />Michael R. Neumann <br />Sr. Scientis[ <br />JCW:cmc <br />enclosure <br />cc: Bob Medler <br />John Weinman <br />Project Files <br />Enghgeering G Envltonmental Services <br />P.0 Box 77goi8 <br />ig75 Pine Grove Road <br />S~eamboa~ Springs. Colorado Bog77 <br />Phone 97o B7q 6x6o Fax q7o R7q gogB <br />you referenced the <br />As you know, the <br />(HGCC}, but the <br />The facility was <br />Srcam6oat Springs Denver Fon Collins Seattle Sanllayo <br />