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age 1:5-1 U OT bZ <br />Hydraulic Conductivity Test Data <br />Project: West Elk Mine RPE Expansion - #06261003 Date: 8/17/200' <br />Reported To: Barr Engineering Company Job No.: 7110 <br />Boring No.: <br />RPE <br />RPE <br />RPE <br />Sample No.: <br />1 <br />2 <br />3 <br />Depth (ft.): <br />Freshly Mixed <br />North of <br />Location: <br />Pile <br />Trench Drains <br />E. End <br />Sample Type: <br />Bulk <br />Bulk <br />Bulk <br />Mixture of Coal <br />Mixture of Coal <br />Mixture of Coal <br />& Mineral Soil - <br />& Mineral Soil - <br />& Mineral Soil - <br />Clayey Gravel <br />Clayey Sand with <br />Clayey Sand with <br />(GC) <br />Gravel <br />Gravel <br />(SC) <br />(SC) <br />Soil Type: <br />Organic Content <br />37.3 <br />36.1 <br />36.7 <br />LL <br />335 <br />31.0 <br />31.5 <br />PL <br />23.3 <br />21.5 <br />22.2 <br />PI <br />10.2 <br />9.5 <br />9.3 <br />Permeability Test <br />Reconstituted <br />Reconstituted <br />Reconstituted <br />vi Saturation %: <br />C <br />0 <br />Porosity: <br />c <br />U Ht. (in): <br />3.00 <br />3.00 <br />3.00 <br />N <br />H Dia. (in): <br />2.85 <br />285 <br />2.85 <br />a) <br />o Dry Density (pcf): <br />71.9 <br />71.2 <br />71.4 <br />a> <br />ED Water Content: <br />153% <br />15.1% <br />15.2% <br />Test Type: <br />Falling Head <br />Falling Head <br />Falling Head <br />Max Head (ft): <br />5.0 <br />5.0 <br />50 <br />Confining press. <br />(Effective -psi): <br />2.0 <br />2.0 <br />2.0 <br />Trial No.: <br />18 -22 <br />12 -16 <br />12 -16 <br />Water Temp °C: <br />20.0 <br />20.0 <br />20.0 <br />% Compaction <br />90.6% <br />90.1% <br />90.2% <br />% Saturation <br />(After Test) <br />96.3% <br />97.1% <br />95.4% <br />Coefficient of Permeability <br />K @20°C(cm /sec) <br />4.2x106 <br />4.8x10 -6 <br />3.7x10-6 <br />K @20°C(ft/min) <br />8.3x10 -6 <br />9.5x10-6 <br />7.2x10-6 <br />Notes: <br />9301 Bryant Ave South Suite 107 SOIL. G pt>v�, Bloomington Minnesota 55420 -3436 <br />ESTtNU.INC. <br />