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~ '~ ~ ` 'GEOTECH ~~ <br />Structural & Geotechntcal Engineers <br />222 South Park Ave. • Montrose, CO 81401 <br />Ph.: (970) 249.6828 • FAX: (970j 249-0945 <br />STANDARD PROCTOR ASTM D 698. ASTM D 4718 <br />METHOD C <br />Project Name Gob Pile Stability Date 2/7/2007 <br />Project Location Bowie Mine Project # 05-126-CMT <br />Client Bowie Resources Sample by LES <br />Test Location site #121'@6" Test by DG <br />Sample ID #13 <br />Soil Description coal tailings <br />Oversize Particles Determined by Sieve: 3/4" Max. Dry Density (fine frac8on) (pcf): 107.1 <br />Percentage Oversize Particles (by weight): 25.0 Optimum Moisture Content (fine frac8on)(%): 12.3% <br />Bulk Specific Gravity (GM): 2.30 Corected Max. Dry Density (pcf); 114.8 <br /> Corrected Optimum Moisture Content (%): 9.5°fo <br />150 <br />145 <br />140 <br />135 <br />130 <br />a <br />125 <br />N <br />2 <br />0 120 <br />115 <br />110 <br />105 <br />100 <br />95 <br />5% 6% 7% 8% 9% 10% 11% 12% 13% 14% 15% <br />MOISTURE CONTENT (%) <br />16% 17% 18% 19% 20% <br />