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Wright Environmental Services Inc Exploratory Boring Log <br /> M & M Automotive — 60 E. 10th Street Tracy, California <br /> • Project No 4070—T <br /> Boring No . B-4 Casing depth j <br /> Total depth of boring 10 5 feet Casing diameter <br /> Diameter of boring: s' Inches ; Casing material- <br /> Date drilled. 12-5-94 Slot size- <br /> Drilling method Hollow--Stem Auger Sane! size, <br /> Field Geologist: cv Screen Interval: <br /> TIDE Sample USCS Well <br /> PID No. O Depth Code Description Const <br /> m <br /> 2 <br /> e <br /> e <br /> 213 <br /> 0 s 4 Silty Clay; yellowish brown 10 yr 4/4, 30-40% clay, e <br /> 8 4-!S 11 30-40% silt; 10--20% very fine sand, very stiff, damp e <br /> 6 <br /> e <br /> e a <br /> 227 a Some as above, stained greenish gray e <br /> 0 10 <br /> 12 Bottom of boring O 10 5 feet <br /> 14 <br /> • 18 <br /> 18 <br /> 20 <br /> 22 <br /> 24 <br /> 26 <br /> 28 <br /> 30 <br /> 32 <br /> 34 <br /> 38 <br /> 38 <br /> 40 <br /> 42 <br /> 44 <br /> 46 <br />