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• <br />• <br />July 30, 2009 <br />KCCC — Colowyo Mine <br />5731 State highway 13 <br />Meeker, CO 81 641 <br />Attn: Mr. Tay Tonazzi and Mr. Kunis Blunt <br />RE: GEOTEC14NICAL STUDY, COLLOM TEMPORARY SPOII, Fit'I" <br />COLOWYO COAL MINE <br />Enclosed is our geoteclinical report for design of the above-referenced project. This report <br />presents the results of our field explorations and laboratory tests_ presents the results of our <br />stability analyses, and provides geotechnical recommendations. <br />We appreciate the opportunity to be of sciwice to VOLI on this project. If you have any questions <br />or require further infOrmation, please contact me at 303-825-3800. <br />Sincerely, <br />SHANNON & WILSON INC. <br />Mark Gay, P. E. <br />/Gr <br />Senior Associate <br />MGG:DAV:GR.F/i <br />Enc: Geotechnical Study, Collom Temporary Spoil Fill, KCCC - Colowyo Mine <br />23-1-01101-400.Ri-t,i.,Ioctil,'p!1Kn <br />, C, - i� I <br />)60 BAN NO K �; T k , ' S'­'~ E 1 3 - 1 - 01101400 <br />, <br />F! Ax �i 01 A ? r) 1:16 0 <br />wvvv. ,h-%nmnn'w <br />Exh. 23-1-4 Revision Date: 08/05/09 <br />Revision No.: PR-03 <br />P , I A r, <br />SHANNON 6WILSON. INC. <br />an= <br />S.will <br />AND ENVIRONNIFNTAL C0N5L*LTANTS' <br />July 30, 2009 <br />KCCC — Colowyo Mine <br />5731 State highway 13 <br />Meeker, CO 81 641 <br />Attn: Mr. Tay Tonazzi and Mr. Kunis Blunt <br />RE: GEOTEC14NICAL STUDY, COLLOM TEMPORARY SPOII, Fit'I" <br />COLOWYO COAL MINE <br />Enclosed is our geoteclinical report for design of the above-referenced project. This report <br />presents the results of our field explorations and laboratory tests_ presents the results of our <br />stability analyses, and provides geotechnical recommendations. <br />We appreciate the opportunity to be of sciwice to VOLI on this project. If you have any questions <br />or require further infOrmation, please contact me at 303-825-3800. <br />Sincerely, <br />SHANNON & WILSON INC. <br />Mark Gay, P. E. <br />/Gr <br />Senior Associate <br />MGG:DAV:GR.F/i <br />Enc: Geotechnical Study, Collom Temporary Spoil Fill, KCCC - Colowyo Mine <br />23-1-01101-400.Ri-t,i.,Ioctil,'p!1Kn <br />, C, - i� I <br />)60 BAN NO K �; T k , ' S'­'~ E 1 3 - 1 - 01101400 <br />, <br />F! Ax �i 01 A ? r) 1:16 0 <br />wvvv. ,h-%nmnn'w <br />Exh. 23-1-4 Revision Date: 08/05/09 <br />Revision No.: PR-03 <br />