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sECOR <br /> International Incorporated <br /> Logged By Date Dnlled Drilling Contractor Project Name Method/Equipment Well Number <br /> . ARCO#595 HSA <br /> CM 6126102 CASCADE STOCKTON,CA SPLIT SPOON MW-10 <br /> See"Legend to Logs"for Bonng Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) V 60 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 8 3127 TOC T 6125 STABILIZED 705 <br /> testm methods <br /> ani <br /> w O <br /> Well a 3 Descnption <br /> Construction Q <br /> TRAFFIC o As halt <br /> RATED roadbase <br /> 'WELL BOX SAND (SP) <br /> A GROUT SILTY CLAY (CL) with sand,black(10YR2/1),hard,moist, <br /> moderate plasticity(0,15,25,60) <br /> v v 25 0 MW10 <br /> 5 27 Same as above,color changes to very dark grayish brown(10YR3/2) <br /> a e <br /> 23 @4' <br /> " A <br /> 0. <br /> 23 SILTY SAND (SM) dark yellowish brown(I0YR4/4),sand is 0 MW10 <br /> 10 26 fine-grained,very dense,moist(0,75,25,0) @9' <br /> 27 <br /> f <br /> ° 0 <br /> ° 24 CLAYEY SILT(ML) with sand,brown(10YR4/3),sand is 0 MW10 <br /> 15 27 fine-grained,hard,moist,moderate plasticity,subangular blocky sot] @ 14' <br /> 28 structure(0,20,55,25) <br /> v v <br /> e <br /> 33 SILTY SAND(SM) same as above 0 MW10 <br /> 20 35 @ 19' <br /> 37 <br /> v v <br /> " 32 SAND(SP) olive brown(2 5Y4n),sand is fine-grained,very dense, 0 MW10 <br /> The substrata descriptions above are generalized representations and based upon visuaUmanual 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 77BP 50595 00 0330 Date 818/02 GMH Log of Well <br /> 595MW 10 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 3) <br />