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chen and associates <br />CONSULTING GEOTECHNICAL ENGINEERS <br />R [OUfM IY"l fi"ELT . PF"VEh CAlD14pp ~6ia • ~6flIYA~O[ <br />Subject: <br />Geo-Hydro. Consulting. Inc. <br />9485 W. Colfax Avenue <br />Denver, Colorado 80215 <br />Attn: Graeae Major <br />Dear Mr. Major: <br />September 11, 1980 <br />Laboratory Testing, <br />Mount G:xani~n Coal Mine. <br />Sob No. 20,908 <br />Enclosed please fib c~leted test results as requested for the <br />subject project. ~e tests included one three-g~int "CIU Triaxial <br />Test° (Fig. 4), One "CU Direr Shear Test" (Fig. 3), four "Un~nfine <br />ConQression (uniaxial) Tests" (Table I), three "Gradation Analyses", <br />three "Atterberg limit Tests", and several "Moisture-Density" results <br />for the above test samples (Table I). <br />Also two "Slake Durability" tests were performed. The following <br />aze the results: <br />SIA10r Dl7RABILITY <br />Boring No. Deoth 1st cle 2nd Cycle <br />P-2 39'-10" - 40'-4" 25.078 7.008 <br />P-3 47'-1" - 47'-4" 0.418 0.33$ <br />If you have any•questions or need further assistance, please call. <br />gunk you. <br />Sincerely, <br />Ch'FS1 AAID~A.SSOCIP.T~ES,/~II~. <br />Kenneth R. Criley <br />KRC/lmt <br />Encl. <br />• <br /> <br />• <br />;~ - <br />OFflCEi CJLSPER • CO~DMDO SPR1N05 ~ GLENWOOD SPRINGS ~ CALT LAKE CfTY <br />