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sECOR <br /> ' Irueniauonallncor orated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> ARCO Station#4932 HSA-Split Spoon <br /> D Harp 8/21/00 West Hazmat 116 E Harding Way,Stockton,CA CME-75 MW-1 <br /> See"Soil Clasification Chart" Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> for Soil Classifications and Diam(in) Elev(ft) V 28 5 First Water Depth(ft) wt(lbs} Dist(in) <br /> Designations <br /> 10 T 26 95 Stabilzed Water 415 140 30 <br /> 0 <br /> well ; Q^ z <br /> y 3 Description a <br /> Construction A <br /> 1 � <br /> 15 CLAYEY SILT(ML) Olive Brown(2 5Y 414),slightly plastic,stiff, 31 MWA <br /> ' 21 moist,minor hydrocarbon odor (25,40,35) @25 <br /> 24 26 95'Stabilized Water <br /> 28 T Encountered Water <br /> 30 15 SILTY SAND with CLAYS(SM/SC) Olive Gray(5Y 4/2), fine 10 MW-1 <br /> ' 26 grained sands with minor medium grained sands,poorly graded, @30 <br /> 33 moderately cohesive,dense,very moist,minor hydrocarbon odor <br /> (50,30,20) <br /> 1 <br /> 35 15 SILTY CLAY(CL) Dark Olive Brown(2 5Y 3/3),minor sands,Iow 22 MW-1 <br /> 20 to medium plasticity,stiff,very moist,minor hydrocarbon odor @35 <br /> 24 (10,30,60) <br /> 40 15 0 MW-1 <br /> 26 @40 <br /> 33 <br /> ' 45 <br /> ' The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from <br /> ' one predominant 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 077 41983 330 Date 10/19/00 Log of Well <br /> ' 4932 GPI Figure <br /> LOG OF BOREHOLE <br /> (sheet 2 of 2) <br />