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SECOR <br /> International lnco rated <br /> rLogged By Dates Dnlled Drilling Contractor Project Name Method/Equipment Well Number <br /> 1/30/01 WEST ARCO 6020 HSA <br /> CH 1130101 HAZMAT MANTECA, CA SPLITSPOON MW-6 <br /> '5011 Clasification Chart" Boring Surface Groundwater Depth(ft) E36 <br /> Drive Drop <br /> for Soil Classifications and Diam(1n) Elev(ft) 21 FIRST ) wt(lbs) Dist(in) <br /> Designations <br /> 10" 43 65(TOC) X 20 66 STABILIZED 140 30 <br /> 0 <br /> Well <br /> x � <br /> 3 <br /> Construction C 2 o DescriptionCL <br /> a <br /> TC ASPHALT <br /> RELATED <br /> WELL BOX SILTY SAND(SM) brown,fine grained sand, loose,damp,no hydrocarbon <br /> • GROUT odor (0,75,25,0) <br /> r 4p <br /> • • 4"BLANK <br /> CASING <br /> 6 5 6 SILTY SAND(SM) dark brown,fine grained sand,some small gravel, 0 <br /> BENTO 10 loose,damp,no hydrocarbon odor(10,75,15,0) <br /> SEAL 12 <br /> r <br /> 4" 10 4 SAND(SP): brown,fine grained,medium dense,damp(0,90,10,0) 0 <br /> SLOTTED _X <br /> 12 <br /> SCREEN 21 <br /> SAND 1S 26 SAND(SP) light brown,fine to medium grained,dense,damp,(0,90,10,0) 0 <br /> 50 <br /> 12 SILT(ML). light brown,stiff,medium plasticity,moist to wet,no 0 <br /> 17 hydrocarbon odor(0,0,90,10) <br /> za <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 42070 330 Date 2/15/01 Log of Well <br /> 6020MW6 GP1 Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet l of 2) <br />