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~:~ <br />~ '~ <br />P.O. BOX 584 311 I <br />PHONE 970-325-4482 <br />Jury 12, Zoos <br />Mr. Bob Oswald <br />State of Colorado <br />Division of Minerals & Geology <br />Durango Field Office <br />701 Camino del Rio, Room 125 <br />Durango, CO 81301 <br />~~ ~e.~~~c.~C ~V i~aY~ ~'--0 <br />~~~ z-Law ~etv~i>~i3 r~(n-./r~~-r,~GshG~t <br />Re: Idarado Mining Company <br />CMLRB Permit 77- 403 <br />Idarado Legacy Development Materials Characterization <br />Deaz Mr. Oswald: <br />Enclosed is a Technical Memorandum prepared by MFG, Inc. presenting a materials <br />geochemical characterization of soil materials removed from the Idarado Legacy <br />Development Project in Telluride. The identified materials were comprised of native <br />alluviaUcoalluvial soils, tailing materials from the historic Pandora Mill operations used <br />to bed buried infrastructure facilities within past company residential azeas, and Pandora <br />portal development (waste} rock used as roadway construction materials in the same <br />development azea. The above defined materials were excavated from the historic Pandora <br />residential area and transported to the permitted stockpile location at the Pandora Mill in <br />accordance with the Technical Revision submitted and approved summer 2004. As <br />discussed in the attached presentation approximately 40,000 cubic yards of the identified <br />materials were excavated and transported during the period May 2004 through December <br />2004. <br />Due to the manner the tailing and waste rock materials were previously placed within the <br />Pandora site, selective excavation and removal of the mine materials was not possible. <br />Therefore, the excavated, transported and stockpiled materials placed to the permitted <br />stockpile is a blended composite of the native and mine related materials removed. Since <br />selective excavation and stockpile placement was not possible, the presented materials <br />geochemistry is a representative placement within the stockpile. As shown with the <br />presented geochemical data, the excavated and placed materials demonstrate very low <br />acidic characteristics and the vast balance of the materials demonstrate a net alkaline <br />condition. <br />~~~ 2? <br />V <br />81427 <br />?0 <br />~'e~~ <br />em <br />~U( <br />1 g 2gOs <br />QN~~jairofh~oF(e <br />"T~n^a,,~j ~OA~ <br />~ivisione~ QS eotag3' <br />Minera/a aaI peo/apY <br />Since completion of the' 2004 materials removal activities, excavation and stockpile <br />materials placement has commenced with development properties associated with the <br />Liberty Bell development site. As completed with the Pandora site, materials excavated <br />