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SECOR <br /> I7iteri{ajipnalIrscorpo&ed <br /> Logged By- -Dates Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> 7/16/01 WEST ARCO#4932 SPLIT SPOON <br /> DH 7116101 HAZMAT -- -STOCKTON,CA - — HSA---- — --MW-8 - <br /> See"Legend to Lags"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diani(in) Elev(ft) 28 5 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 8 NA 28 44 STABII.IZED 41 5 140 30 <br /> testing methods <br /> a <br /> Well 3 Description <br /> Construction <br /> TRAMC Asphalt,gravel <br /> RATED <br /> ' WELL BOX SALTY SAND(SM). very dark brown(IOYR2/2),fine-grained sand, <br /> t loose,slightly moist,no hydrocarbon odor(0,55,40,5) <br /> • GROUT <br /> 5 13 CLAYEY SILT(ML):dark brown(10YR3/3),low to medium 0 MW-8 <br /> 26 plasticity,very hard,dry,no hydrocarbon odor(0,10,55,35) 05' <br /> • 50/2" <br /> ro ro <br /> 4 4 <br /> 10 13 SILTY SAND(SC).dark yellowish brown(10YR4/4),mucor clay, 0 MW-8 <br /> ,b b 19 low plasticity,dense,slightly moist,no hydrocarbon odor(0,50,35,15) C&10' <br /> t 24 <br /> P p <br /> O e <br /> i <br /> BENTONTIT 15 17 0 MW-8 <br /> SEAT, 5016" @ 15' <br /> SAND <br /> 2" 20 17 SANDY SILT(ML).brown(10YR4/3),fine-grained sand,low 0 MW-8 <br /> SLOTIED 50 plasticity,very hard,slightly moist,no hydrocarbon odor(0,20,65,15) @20' <br /> SCREEN <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 tune of drilling and may not be representative of subsurface conditions at other locations or tunes <br /> Project No 077.43286 330 Date 8/14101 PR Log of Well <br /> 4932MW8 GP7 Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 2) <br />