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SECOR <br /> InternattonalIncorporated <br /> =DH <br /> Date Drilled Drilling Contractor Project Name Method/Edwpment Well Number <br /> CASCADE TOSCO 8671 HOLLOW STEM AUGER <br /> 12/14/01 DRILLING STOCKTON, CA SPLITSPOON MW-5 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diann(in) Elev(ft) SZ 34 FIRST Depth(ft} wt(lbs) Dist(in} <br /> classifications and laboratory 8 13 52 TOG X 34 02 STABILIZED 455 140 30 <br /> testin methods <br /> O <br /> o <br /> Well �' � a. Z <br /> a o Descnption <br /> Construction r Q <br /> TRAFFIC Concrete <br /> RATED Hand-augered to 5 feet <br /> ' WELL BOX CLAYEY SILTY SAND(SM) very dark gray(5Y3/1),fine-grained <br /> sand,low plasticity,dense,wet,no odor(0,45,35,20) <br /> ° 30 Same as above 0 MW5 <br /> 5 15 @5' <br /> 18 <br /> a <br /> r r <br /> b b <br /> ° 14 SILTY SAND(SM) light olive brown(2 5Y5/3),fine-grained sand, 0 MW5 <br /> 10 19 dense,moist,poorly graded,no odor(0,60,35,5) @ 10' <br /> . ° ° 54 <br /> T T I <br /> {-'TROUT <br /> r <br /> 15 Same as above(0,70,30,0) 0 MW5 <br /> 15 22 @ 15' <br /> 31 <br /> 4 <br /> d O <br /> r � <br /> SANDY SILT(ML) grayish brown(2 5Y5/2),fine-grained sand,low <br /> 10 plasticity,very stiff,damp to dry,minor oxidation,no odor 0 MW5 <br /> 20 21 (0,30,60,10) @20' <br /> BENTONITI 25 <br /> SAND <br /> 9 Same as above 0 MW5 <br /> The substrata descnpttons 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 locations or times <br /> Project No 077 43791 222 Date 12/31/01 PR Log of Well <br /> 8671MW5 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 2) <br />