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I~ _ - - (I Civil, Structural & Geotechnical Engineers <br />• 712 South Park Ave. • Montrose, CO 61401 <br />Ph.: (970) 249-6828 • FAX (970) 249-0945 <br />Sieve Analvsis and Atterberg Limits <br />Project Name Gob Pile Stability Date 1/3/2007 <br />Project Location Bowie Mine Gob Pile #4 Project # 06-481-003 <br />Client Bowie Resources Sample by BB <br />Test Location BG06-08 @10-11' Tested by LES <br />Sample # GS45 <br />Sieve Analvsis <br />ASTM C736/C117 <br />Steve Opening <br />(mm) ,/ Passing <br />3" 76.2 100.0 <br />3/4" 19.0 88.5 <br />3/8" 9.5 80.4 <br />#4 4.75 73.2 <br />#10 2.0 57.1 <br />#40 0.425 45.1 <br />#200 0.075 29.6 <br />Soil Description reddish brown <br />USCS Classification SC <br />#200 <br />100 <br />90 <br />80 <br />70 <br />rn <br />m 60 <br />N <br />ni <br />a 50 <br />c <br />m <br />40 <br />a <br />30 <br />20 <br />10 <br />0 <br />SAND with <br />Atterbera Limits <br />ASTM D4318 <br />Liquid Limit (LL) 24 <br />Plastic Limit (PL) 15 <br />Plasticity Index (PI) 9 <br />Natural Moisture Content (%) = 7.8% <br />V <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 = 29.6 % Sand = 43.6 % Gravel = 26.8 <br />100 <br />