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~ • GEOTECH~ <br />Civil, Structural & Geotechnical Engineers <br />222 South Park Ave. • Montrose, CO 81401 <br />Ph.: (970) 249-6828 • FAX: (970) 249-0945 <br />STANDARD PROCTOR ASTM D 698. ASTM D 4718 <br />METHOD C <br />Project Name Gob Pile Stability Date 2/16/2007 <br />Project Location Bowie Mine Project # 05-126-CMT <br />Client Bowie Resources Sample by LES <br />Test Location site #124 ~6" Test by DG <br />Sample ID #15 <br />Soil Description coal tailings <br />Oversize Particles Determined by Sieve: 3/4" Max. Dry Density (fine fraction) (pcf): 104.1 <br />Percentage Oversize Particles (by weight): 15.2 Optimum Moisture Content (fine fraction)(%): 12.3 <br />Bulk Specific Gravity (GM): 2.30 Corrected Max. Dry Density (pcf): 109.0 <br /> Corrected Optimum Moisture Content (%): 10.7 <br />150 <br />145 <br />140 <br />135 <br />130 <br />a <br />125 <br />rn <br />Z <br />0 120 <br />0 <br />115 <br />110 - <br />105 - <br />100 - <br />95 <br />5% <br />6% 7% 8% 9% 10% 11% 12% 13% 14% 15% 16% 17% 18% 19% 20% <br />MOISTURE CONTENT (%) <br />