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BORING LOG <br /> Project No Boring Diameter 9" Logged By 1:17�C <br /> KEI-P89-1104 Casing Diameter N/A W W <br /> • Protect Name Unocal S/S 44,5421 Well Cover Elevation Date Drilled <br /> 7303 Pacific Avenue,Stockton 11/9/92 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> EB4 Method Auger Woodward Drilling Co <br /> Penetration G W Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 5/6/11 ML ___= Silt very stiff,very moist dark gray (5Y 4/I), silt is slightly <br /> 25 =_=m elastic, traces of rootlets and organic matter micaceous <br /> —T-,=. ------------ -- ---- <br /> SM <br /> '% %'%'% Silt sand, fine to very finc-grained estimated at 15S$ silt dense <br /> 1I/I3/24 30 ,•f•f•: Y ry o <br /> ;' moist, grayish brown(10YR 5/2) <br /> .,. . . <br /> •4a'O'O« <br /> a a a0 <br /> Sand and gravel well graded,subrounded gravel to 1-1/2 inches <br /> s e . <br /> GW •««•«« in diameter, medium dense, moist pale brown (10YR 6/2) <br /> ti•a°•aa a* <br /> 9/11/12 35 <br /> Silt,estimated at 5-I0% clay, very stiff,very moist vellowish <br /> _= brown 00YR 5/4),slightly micaceous <br /> 13/29/35 40 Sand, fine-grained trace silt, trace medium-grained sand .m <br /> SP dense, moist, grayish brown (10YR 5/2) <br />• - r __ Clayey silt,estimated at 15% clay, hard moist brown (10YR-5 <br /> X11- —_ — slightly micaceous <br /> Page 2 of 3 <br />