2002-05-13_PERMIT FILE - C1981041 (2)

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TH IFTd 5 10 15 0 25 30 LOG OF SUBSURFACE EXPLORATION POND 12 EMBANKMENT, CAMEO Powderhorn Coal Com a8 ,Palisade, CO. "; ~%s- ;;, Western Associated Coai Corp. Date `~ ~ LINCOLN - DeVORE, Inc. ~ >Flagstarr, Arizona ~-2,-9~ ~ ' y Geotechnical Consultants Job No. Drawn Grand Junction, Colorado 86110.) EMM SdL BORING NO. 1 SOUTH EMBANKMENT, 100' WEST OF DIKE Between POND 66 11. BORING ELEVATION: BLOW COUNT SdL DENSITY WATER Loo DESCRIPTION /Inch % ROCKY, CLAYEY SILTS, 'PIPING HOLES' ON SURFACE I EMBANKMENT FILL DRY to SI. MOIST STRATA OF GRAVELS VERY FIRM TO DRILL 1 ML SANDY SILT SULFATES ST 5.5% I t II LOW DENSITY SAND 8 GRAVEL STRATA 5 I t NATIVE SOIL ALLUVIAL/DEBRIS FAN BULK 5.6% I 1 ML SANDY SILT DRY to SI. MOIST II LOW DENSITY VERY STRATIFIED SPT 23/6 5.8°b CL-ML SILTY CLAY/CLAYEY SILT ALLUVIAL 10 59/12 I 1 1 III LOW PLASTIC LOW DENSITY, COMPRESSIBLE 106/18 I I I SM Oce. GRAVELS 8 BOULDERS SULFATES I 1 SILTY SAND & BOULDERS DRY to SI. MOIST I I 1 SM SLIGHTLY FIRM TO DRILL SPT 09/06 5.2°.6 I I 1 1 GRAVELS & BOUT: ~.RS 15 19/12 i-... _UVIAL/DEBRIS FAN 30/18 I I ~ STRATA OF SILT & ~:_TY CLAY I I ~ SM SILTY SAND 8 BOULDERS BULK 3.8% I 1 LOW DENSITY DRY to SI. MOIST I I COMPRESSIBLE MATRIX SOILS 20 ~ STRATA OF SILT 8 SILTY CLAY ~ I SLIGHTLY FIRM TO DRILL I SM SILTY SAND & BOULDERS DRY to SI. MOIST b I 1 GRAVELS 8 BOULDERS 1 I ALLUVIAL/DEBRIS FAN 25 I LOW DENSITY I ~ I SM SILTY SAND & BOULDERS I Occ. GRAVELS 8 BOULDERS DRY to SI. MOIST ALLUVIALIDEBRIS FAN 30 TD ~ 28' Blow Counts are cumulative for each 6 inches of sampler penetration. NO Free Water Durin Drillin 6-9-97