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Moisture Density Curve ASTM: D698, Method B <br />Page B -4 of 62 <br />Project: West Elk Mine RPE Expansion - #06261003 Date: 7/27/09 <br />Client: Barr Engineering Company Job No. 7110 <br />Boring No. Sample: 3 Depth(ft): Location: East End <br />Soil Type: Mixture of Coal and Mineral Soils - Clayey Sand w /gravel (SC) Organic Content: 36.7 <br />As Received W.C. ( %): 8.6 LL: 31.5 PL: 22.2 PI: 9.3 Specific Gravity: 1.66 *Assumed <br />♦ p ♦ o <br />Maximum Dry Density (pcf): 79.2 Opt. 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