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f I <br /> JOB ICLIENT LOCATION <br /> EA ENGINEERING, C1IV720 Chevron,USA Stockton,Ca. <br /> SCIENCE.AND MMTECHNOLOGY, INC_ DRILLING AND SAMPLING METHODS <br /> 8.5'inoh hollow stem auger. 2.5 inch split spoon sampler. <br /> LOG OF SOIL BORING EA2 Driller Kvilhaug Ca St.Llo.No.482390. <br /> :R <br /> Coordinates: 121 14' 50-west DRILLING <br /> 37 14'30"north WATER Ll=YE1: 46.50 46.65 START FIMSH <br /> TIME 10:45 $ 05 <br /> Elevation tap of casing: 26.77 ft. TINE .14:00 T11vE 16:00 <br /> Casing below3urface: 0.4 ft. DATA 2/10/88 2/1 i/88 <br /> REFERENCE ; �! UATE� DATE <br /> of C T of C 2/9/88 2/9/88 E <br /> c ,,, uj _, = 1, V SURFACE CONDITIONS unimproved fill. <br /> F-- io m _ <br /> F <br /> gypp' ' a �- a LLJ - a d o.. O �, <br /> U� a`a <br /> incn o D = DESCRIPTION by .tan Stepek <br /> 0 fill <br /> r� 1 <br /> 2 darkgray clayey silt (MH):organic'odor' moist. <br /> MH <br /> 3 <br /> 00 004 <br /> 5 ° <br /> gray sandy silt, (MH) moist (some clay) no odor <br /> 6 MH OVA=Oppm• <br /> 7 <br /> $ send,y silt (ML)brown, no odor, moist <br /> 0 ML OVA"0ppm <br /> 00 <br /> 1000 or <br /> 1 very stiff clayey brown silt, (MH). <br /> 10 11 dry,with deposits (salt?) in fractures <br /> 1210 40 2 no odor,OVA=O ppm <br /> 3- <br /> 4- MH <br /> I 15 <br /> 10 <br /> 18 10 16 6 cl8yey silt (MH)brown ,with gray mottling, no odor, <br /> 13-30— 7 OVA= 0 ppm. <br /> 8- <br /> 2 O <br /> 20 <br /> Page 1 of 3 <br />