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GEOTECH <br />Structural & Geotechnical En <br />222 South Park Ave. • Montrose, CO 81401 <br />Ph.: (970) 249-6828 • FAX: (970} 249.0945 <br />Sieve Analvsis and Atterberp Limits <br />Project Name McClane Canyon Mine Gob Pile Stabili tDate 9/28/2007 <br />Project Location Garfield County, CO Project # 07-334-GEO <br />Client _McClane Canyon Mining, LLC Sample by BB <br />Test Location BH#04 @15-16.5' Tested by BAU <br />Sample # GS#18 <br />Sieve Analvsis <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 91.7 <br />#4 4.750 85.3 <br />#10 2.000 78.7 <br />#40 0.425 70.2 <br />#200 0.075 39.9 <br />JI#tterbera Limits <br />ASTM D4318 <br />Liquid Liimit (LL) 22 <br />Plastic (Limit (PL) 17 <br />Plasticity Ondex (PI) 5 <br />Natural Moisture Content (%) = 4.6% <br />' ~~ Soil Description light brown silty, clayey SAND <br />USCS Classification SC-SM <br />#200 #40 #10 #4 3/4" 3" <br />100 <br />90 <br />80 <br />70 <br />rn <br />H 60 <br />to <br />!6 <br />a 50 <br />c <br />d <br />40 <br />a~ <br />o. <br />30 <br />20 <br />10 <br />0 <br />0.01 <br />0.1 1 10 <br />Particle Diameter (mm) <br />100 <br />• <br />• <br />Clay/Silt Fine Medium Coarse Fine Coarse <br />FINES SAND GRAVEL <br />Fines = 39.9 % Sand = 45.4 % Gravel = 14.7 <br />