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SECOR <br /> hgema ioW hworwrated <br /> =BH <br /> Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> GREGG ARCO#4493 HOLLOW STEM AUGER <br /> 5/8/02 DRILLING STOCKTON,CA SPLITSPOON MW-Mm <br /> See Legend to Logs for Bog Surface Groundwater Depth(ft) Total Drive Drop <br /> Sampling method, Diam(in) Elev(ft) 17 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory <br /> testing methods 10 520 140 30 <br /> F-vO <br /> Z <br /> Cansvtructnon DescriptionP. Q <br /> a <br /> SAND(SW) dark gray(2 5Y4/1),medium-grained,saturated,well graded,no 0 MW9 <br /> hydrocarbon odor(0,95,5,0) @25' <br /> 30 SAND(SP) grayish brown(2 5Y5/2),fine-to medium-grained,saturated, 0 <br /> poorly graded,no hydrocarbon odor(0,100,0,0) <br /> 0 <br /> Color change to dark gray(2 5Y4/1),fine-grained,saturated,well graded,no <br /> BENTONITE 35 hydrocarbon odor <br /> SEAL <br /> • SAND#3 <br /> MW-9M 0 <br /> SCREEN <br /> 2"0 020 <br /> 0 <br /> Same as above <br /> 40 ` SANDY GRAVEL(GP) dark gray(2 5Y4/1),fine-to medium-grained sand, <br /> subangular gravel,saturated,poorly graded,slight hydrocarbon odor <br /> (60,30,10,0) <br /> 0 MW9 <br /> SANDY CLAY (CL) gray(10YR5/1),fine-grained sand,firm,moist,low @42' <br /> plasticity,no hydrocarbon odor(0,30,5,65) <br /> BENTONYrE <br /> SEAL <br /> 45 0 <br /> SILTY SAND (SM) gray(10YR5/1),fine-grained sand,moist to very moist, <br /> no hydrocarbon odor(0,60,40,0) <br /> MW-8D <br /> SCREEN 0 NfW9 <br /> 2"0 020 @52' <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or samples <br /> obtained during drilling Predominant material types shown an the log may contain different materials and the change from one <br /> predommant material type to another could be different than indicated Descriptions on this log apply only at the specific location at the <br /> time of drilling and may not be representative of subsurface conditions at other locations or tunes <br /> Project No 77BP 43036 00 0320 Date 5/31/02 PR Log of Well <br /> i <br /> 4493MW9 GP7 Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 2 of 3) <br />