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PROJECT: New Elk Coal Mine <br />DWDA - West Portal <br />Started Date/Time: 9 Mar 2012/ 9:20am <br />Completed Date/Time: 9 Mar 2012 / 11:15pm <br />Drilling Contractor: Scott Drilling Inc. <br />Drill Rig Type: Simco Truck Mounted <br />Drilling Method: Solid Stem Auger, 4 inch dia. <br />Drillers Name: Scott McCraken <br />SOIL BORING NUMBER: BH -41 <br />Project Manger: J Friedman <br />Logged By: S Mohanty <br />Location: N 1177274.041 E 3147716.005 <br />Surface Elevation (famsl): 7620.3 <br />Total Depth (fbgs): 20.5 <br />Depth to Ground Water (fbgs): Not Encountered= <br />Sample Types: Alluvium - Modified Cal. w /brass liners <br />Bedrock - NQ Core with air rotory <br />Inches Inches Sample <br />Depth SPT Blows Driven Recovered Depth Lithologic Description <br />(Ft) Blows / 6 -in. (inches) (inches) (Ft) (Described Via Cuttings and Continuous SPT Drive Samples) <br />n <br />Sample Types Page No. 1 of 1 <br />SOIL BORING NUMBER: BH -41 BL = brass liner Grab = Large Disturbed <br />ALLUVIUM? <br />SAND, clayey (SC) with occasional gravel, medium dense, moist, dark <br />brown. Approximately 20% or less clay. Approximate 6" dia. sandstone <br />rock fragment encountered at 3.5' below ground surface. <br />Grab from <br />cuttings <br />(0 to 5) <br />5 <br />5 <br />------------------------------------------------------------ <br />ALLUVIUM <br />6 <br />18.0 <br />16.0 <br />2 "x4" BL <br />6 <br />2 "x4" BL <br />SAND, clayey (SC) medium dense, moist, dark brown. Approximately 30% <br />or less clay. Sandstone fragments (5 -10mm) observed in cuttings. <br />Grab from <br />CLAY, stiff, dark brown observed towards bottom of interval. <br />cuttings <br />_____ _______________________________ --------------------- - - - - -, <br />(5 to 10') <br />; Weathered Bedrock <br />10 <br />1 <br />SANDSTONE, weak, poorly cemented, medium grained. Iron staining at <br />11 <br />bottom of interval. <br />13 <br />18.0 <br />18.0 <br />2 "x4" BL <br />25 <br />2 "x4" BL <br />Coring initiated at 11.5' below ground surface.. <br />BEDROCK <br />SANDSTONE, weak, poorly cemented, coarse grained, grey to dark gray. <br />Minor iron staining present on sandstone. <br />Grab from <br />Less than 25% core recovery from 11.5' to 15.5'. <br />15 <br />cuttings <br />(11 to 15') <br />BEDROCK <br />SANDSTONE, weak, poorly cemented, coarse grained, grey to dark gray. <br />Grab from <br />, Several stronger more resitive sandstone layers 2 to 3" thick observed. <br />Core <br />60.0 <br />8.0 <br />cuttings <br />(15 to 20') <br />Less than 15% core recovery from 15.5' to 20.5'. Boring backfilled with <br />cuttings. <br />NQ Core <br />(15.5 to <br />20.5') <br />20 <br />. <br />Sample Types Page No. 1 of 1 <br />SOIL BORING NUMBER: BH -41 BL = brass liner Grab = Large Disturbed <br />