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i <br /> SECOR <br /> InternatwnalIncorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> _ WEST __ ARCO#4932 SPLIT SPOON <br /> CM 6111102 HAZMAT STOCI TON,CA HOLLOW STEM AUGER DMW-2 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft} Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) 26 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 8 NA T 28 STABILIZED 82.5 140 30 <br /> testinLy methods <br /> a <br /> Well 894 3 Descnption � <br /> Construction <br /> a, <br /> 24 SAND(SP) dark yellowish brown(10YR3/4),fine-grained,very dense,wet 2 <br /> 29 010()00 <br /> a 33 SILTY CLAY(CL) dark yellowish brown(10YR4/4),with sand, <br /> fine-grained sand,moderate plasticity,hard,moist(0,10,30,60) <br /> v v <br /> 4 <br /> b 55 24 SILTY SAND(SM) dark yellowish brown(10YR4/4),fine-grained sand, 2 <br /> Y 29 very dense,wet,some sandy silt interbeds present (0,70,30,0) <br /> 33 <br /> b b <br /> s + <br /> e ° <br /> o a 60 18 Same as above 2 <br /> r21 <br /> 37 <br /> 37 <br /> a ° <br /> r <br /> A O <br /> V 65 21SANDY SILT(ML) dark yellowish brown(10YR4/4),with clay, 2 <br /> 35 me- rained sand moderate plasticity,very stiff,moist 0 30 65 5 <br /> 47 SILTY SAND(SM) dark yellowish brown(10YR4/4),with gravel and clay, <br /> b fine-to coarse-gramed sand,gravel is fine,very dense,moist to wet,partially <br /> { cemented (5,60,30,5) <br /> A A <br /> Same as above with no coarse-grained sand or gravel <br /> ° 70 24 2 <br /> 33 SANDY SILT(ML) dark yellowish brown(10YR4/4),fine-grained sand, <br /> 41 hard,moist (0,35,65,0) <br /> o ° <br /> ` 35 <br /> BENTO 5015" <br /> SEAL <br /> The substrata descriptions above are generalized representations and based upon visuallmanual classification of cuttings and/or <br /> samples obtained during dnlhng Predominant material types shown on the log may contain different materials and the change from <br /> one predornmant material type to another could be different than indicated Descriptions on this log apply only at the specific location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77BP 54932 00 0230 Date 8115/02 PR Log of Well <br /> 4932DMW2 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 3 of 4) <br />