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I ~ GEOTECH I I <br /> Civil, Structural & Geotechnical Engineers <br /> 222 Sou[h Park Ave. • Montrose, CO 81401 <br /> <br />Hvdrometer Anal Ph.: (970) 249-8828 • FAX: (970) 249A945 <br />vsis and Atterberg Limits <br /> <br />Project Name Gob Pile Stability Date 12/29/2006 <br />Project Location Bowie Mine Gob Pile #3 Project # 06481-002-02 <br />Client Bowie Resources Sample by BB <br />Test Location BGO6-01 @15-16.5' Tested by VB <br />Sample # GS3 <br />Hvdrometer Analvsis <br />ASTM D422 <br />Sieve Opening <br />(mm) °~ Passing <br />#4 4.75 77.4 <br />#10 2.0 72.1 <br />#40 0.425 69.9 <br />#200 0.075 67.0 <br />Atterberg Limits <br />ASTM D4318 <br />Liquid Limit (LL) 29 <br />Plastic Limit (PL) 18 <br />Plasticity Index (PI) 11 <br />Natural Moisture Content (%) = 12.1% <br />• <br />Soil Description yellow brown gravelly lean CLAY <br />USCS Classification CL <br />#200 #40 #10 fF4 3/4" 3 <br />0.001 0.01 0.1 1 <br />Particle Diameter (mm) <br />100 <br />90 <br />80 <br />70 <br />07 <br />C <br />•in 60 <br />N <br />A <br />~- 50 <br />V <br />C <br />d <br />.. 40 <br />d <br />a <br />30 <br />20 <br />10 <br />0 <br />10 100 <br />Clay size Sill size Fine Medium Coarse Fine Coarse <br />FINES SAND GRAVEL <br />Clay = 23.6 % Silt = 43.4 % Sand = 10.4 % Gravel = 22.6 <br />