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I SECOR <br /> lntematwnalIncorporated <br /> Logged By Dates Drilled Drilling Contractor Project Name Method(Equipment Well Number <br /> • 7/23/01 WEST ARCO#595 SPLIT SPOON <br /> BH 7/23/01 HAZMAT STOCKTON,CA HSA MW-6 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br />' sampLng method, Diam(in) Elev(ft) 50 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classtftcatt0ns and laboratory <br /> testis methods_Tn 8 30 20(TOC) 59 4 STABILIZED 715 140 30 <br /> o <br /> Well a 3 Descnption <br /> Construction <br /> A m U0 <br /> TRAFFIC Grass surface <br /> RATED SILTY CLAY (CL) dark brown,moderate plasticity,moist,soft,no <br /> WELL BOX hydrocarbon odor(0,0,40,60) <br /> GROUT <br /> � o i <br /> 5 5 MW-6 <br /> a a 6 @ 5' <br /> r r 6 <br /> a e <br />' SANDY SILT(ML) reddish brown,fine-grained sand,low plasticity,soft <br /> 10 6 to firm,moist(0,20,75,5) NM-6 <br /> 8 @10' <br /> y <br /> GROUT <br /> 6 SANDY SILT(ML) light brown,with clay,fine-grained sand,low MW-6 <br />' 8 plasticity,soft to firm,moist(0,20,70,10) @ 15' <br /> e e <br /> 9 <br />' P A <br /> . r <br />' 20 7 SILTY SAND(SM) brown,fine-grained sand,medium dense,moist MW-6 <br /> 10 (0,70,30,0) @20' <br /> 14 <br /> v o <br /> r r <br /> r <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 matenals 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 43029 330 Date 9/21/01 PR Log of Well <br /> 595MW6 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (51128t 1 of 3) <br />