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SECOR <br /> rnremarional r,�co�omrea 1 <br /> Logged By Date Drilled Drilling Contractor Project Name Method(Equipment Well Number <br /> WEST ARCO#4932 SPLIT SPOON <br /> CM 3114102 HAZMAT STOCKTON,CA HOLLOW STEM AUGER DMW- <br /> See"Legend to logs"for Boring Surface Groundwater Depth(ft.) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) 30 5 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications methods attons and laboratory <br /> testing 8 1198 TOC T 29 STABILIZED 810 140 30 <br /> Well 3Description <br /> Construction o " <br /> 12 2 <br /> 17 SILTY SAND(SM):dark yellowish brown(10YR4/4),fine-grained <br /> $ 19 sand,very dense,moist to wet(0,60,40,0) <br /> ro v <br /> + b 30 7 SANDY SILT(NII,) yellowish brown(10YR5/4),fine-grained sand, 10 DNMI <br /> t 9 hard moist,swmg chemical odor 0 40 60 0 @30' <br /> 11 SELTY SAND(SM)- brown(10YR4/3),fine-grained sand,medium <br /> p b dense,wet,faint chenucal odor(0,75,25,0) <br /> No recovery Driller reports sand <br /> 35 SAND(SP) olive brown(2 5Y4/3),with trace silt,fine-grained, <br /> ` dense,wet(0,100,0,0) <br /> b d <br /> GROUT <br /> 40 21 SANDY SILT(ML) olive brown(2 5Y4/3),fine-grained sand,low 0 MW <br /> " R 50/6" plasticity,very stiff to hard,moist(0,40,60,0) 940' <br /> b � <br /> t t <br /> P P <br /> 45 12 5 <br /> 17 Same as above,faint chemical odor <br /> 21 <br /> a ro <br /> r � <br /> b b <br /> The substrata descriptions above are generalized representations and based upon visualtmanual 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 tunes <br /> Project No 77BP 43287.00.0040 Date 5/29/02 PR I.og Of Well <br /> 4932DMW 1 GPj Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 2 of 4) <br />