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SECOR <br /> International Incorporated <br /> =LoggedDate Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> ARCO#595 HSA <br /> 6/26/02 CASCADE STOCKTON,CA SPLIT SPOON MW-9 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Dram(in) Elev(ft) SZ 60 5 FIRST Depth(ft) wt(lbs) Dist(in) <br /> testing <br /> classifications and laboratory 8 33 72 TOC T 62 STABILIZED 705 <br /> testing methods <br /> Well v 8 <br /> x a Description <br /> Construction C26 R <br /> TRAFFIC As halt <br /> RATED SAND(SP) with silt,brown(10YR5/3),sand is fine-grained, <br /> WELL BOX medium dense,moist(0,90,10,0) <br /> GROUT <br /> n a <br /> ° 21 SILTY CLAY(CL) with sand,black(10YR2/1),sand is 0 MW9 <br /> 5 25 fine-grained,hard,moist,moderate plasticity(0,20,30,50) @4' <br /> b o <br /> 45 <br /> A p <br /> ° 25 SANDY SILT(ML) with clay,dark yellowish brown(10YR3/4), 0 MW9 <br /> 1p 27 sand is fine-grained,hard,moist,low plasticity,partially cemented @9' <br /> 28 (0,25,65,10) , <br /> ° o <br /> r <br /> 29 Same as above,no clay(0,35,65,0) 0 MW9 <br /> 15 30 @ 14' <br /> 25 <br /> ° o <br /> a o <br /> r r <br /> ' 32 SAND(SP) with silt,dark yellowish brown(10YR3/4),sand is 0 MW9 <br /> 2037 fine-grained,very dense,moist,cemented(0,90,10,0) @ 19' <br /> 37 <br /> S <br /> ° 29 Same as above,not cemented 0 MW9 <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 Iocations or times <br /> . Project No 77BP 50595 00 0330 Date 818/02 GMH Log of Well <br /> 595MW9 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 3) <br />