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SECOR <br /> Intema!tonal Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method(Equipment Well Number <br /> . CASCADE TOSCO 8671 HOLLOW STEM AUGER <br /> DH 12/13/01 DRILLING STOCKTON,CA SPLITSPOON MW-7 <br /> See 'Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) SZ 35 FIRST Depth(ft) wt(lbs) Dist(in) <br /> clssifsting Methods <br /> and laboratory 8 14 34 TOC t 33 58 STABILIZED 450 140 30 <br /> .testing methods <br /> ' O <br /> Z <br /> Well 0 3 Desenptton °��" a <br /> Construction °' 2 +� <br /> CIO <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,moderate plasticity,medium dense,damp,no odor(0,40,30,30) <br /> A A <br /> J <br /> ° 12 Same as above 0 NIW7 <br /> 5 14 @5' <br /> o a <br /> 16 <br /> p SILTY SAND(SM) yellowish brown(10YR514),fine-grained sand, <br /> medium dense,slightly moist,no odor(0,60,30,10) <br /> 15 0 MW7 <br /> 10 17 @ 10' <br /> . 17 SAND (SP) strong brown(7 5YR416),very fine-grained,dense,dry, <br /> poorly graded,oxidation in root casts,no odor(0,90,5,5) <br /> f S <br /> GROUT <br /> A A 14 SILTY SAND(SM) yellowish brown(10YR5/4),fine-grained sand, 0 MW7 <br /> 15 16 dense,dry,poorly graded,oxidized root casts,mottled with black @ 15' <br /> 17 specks,no odor(0,55,35,10) <br /> q G <br /> f <br /> ° p 16 Same as above 0 MW7 <br /> i 20 17 SAND(SP) pale brown(10YR6/3),medium-to coarse-grained 920' <br /> BENTO 16 dense,dry,moderately graded,no odor(0,100,0,0) <br /> SAND <br /> 16 CLAYEY SILT(ML) olive brown(2 5Y4/3),low plasticity,hard, 0 MW7 <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 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 /> 8671MW7 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 2) <br />