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L1=ITIe3~ GEOTECH ~ Civii, Structural & Geotechnical Engineers <br /> 222 Sauth Perk Ave. • Montrose. CO 81401 <br /> Ph.: (970) 24&6828 • FAX: (970) 2440945 <br /> Sieve Analvsis and Atterber q Limits <br />Project Name Gob Pile Stability Date 1/4/2007 <br />Project Location Bowie Mine Gob Pile #4 Project # OS-126-GEO <br />Client Bowie Resources Sample by BB <br />Test Location BG06-09 at the excavation face Tested by LES <br />Sample # BS1 <br />Sieve Analvsis <br />ASTM C736/C117 <br />Sleva ~Penin9 <br />(mm) %Passing <br />3" 76.2 100.0 <br />3/4" 19.0 95.1 <br />3/8" 9.5 91.3 <br />#4 4.750 87.6 <br />#10 2.000 82.8 <br />#40 0.425 76.0 <br />#200 0.075 65.5 <br />• Soil Description <br />USCS Classification <br />100 <br />90 <br />80 <br />70 <br />m <br />H 60 <br />m <br />m <br />°„' 50 <br />c <br />m <br />40 <br />d <br />a <br />30 <br />20 <br />10 <br />0 <br />reddish brown sandy lean CLAY <br />Atterberq Limits <br />ASTM D4318 <br />Liquid Limit (LL) 33 <br />Plastic Limit (PL) 18 <br />Plasticity Index (PI) 15 <br />Natural Moisture Content (%) = 15.8% <br />ttzoo trao n1o tta <br />3/4" 3 <br />0.01 0.1 1 10 <br />Particle Diameter (mm) <br />i• <br />Clay/Silt Fine Medium Coarse Fine Coarse <br />FINES SAND GRAVEL <br />Fines = 65.5 % Sand = 22.1 % Gravel = 12.4 <br />100 <br />