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= ~ , • ~ GEOTECH <br /> <br />Civil, S6ructural & Geotechnical <br />222 Soulh Park Ave. • Montrose, CO 81401 <br />Ph.: (970) 249.6828 • FAX: (970) 249.0945 <br />Sieve Analysis and Atterberg Limits <br />Project Name McClane Canyon Mine Gob Pile Stability Date 9/28/2007 <br />Project Location Garfield County, CO t'roject # 07-334-GEO <br />Client McClane Canyon Mining, LLC Sample by BB <br />Test Location BH#05 @15-16.5' Tested by BAU <br />Sample # GS#23 <br />Sieve Analysis <br />ASTM C136 / C117 <br />Sieve o(rnm) g % Passing <br />3" 76.2 100.0 <br />3/4" 19.0 100.0 <br />3/8" 9.5 100.0 <br />#4 4.750 97.7 <br />#10 2.000 96.5 <br />#40 0.425 94.4 <br />#200 0.075 69.4 <br />Atterbera Limits <br />ASTM D4318 <br />Liquid Uimit (LL) 28 <br />Plastic!Limit (PL) 16 <br />Plasticity Index (PI) 12 <br />Natural Moisture Content (%) = 11.1% <br />Soil Description light brown sandy lean CLAY <br />USCS Classification CL <br />#200 #40 #10 #4 3/4" 3" <br />100 <br />90 <br />80 <br />70 <br />y 60 <br />N <br />R{ <br />a 50 <br />~. <br />c <br />m <br />40 <br />d <br />a <br />30 <br />20 <br />10 <br />0 <br /> <br />0.01 0.1 1 10 <br />Particle Diameter (mm) <br />Clay/Silt Fine Medium Coarse Fine Coarse <br />FINES SAND GRAVEL <br />Fines = 69.4 % Sand = 28.3 % Gravel = 2.3 <br />IVV <br />