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GEOMATRIX <br /> Port of Stockton Log of Well No. MWA <br /> Roberts Island No. 1 <br /> BORING LOCATION: DATE STARTED: DATE FINISHED: <br /> Dredge Placement Site, North Access Road 3/13/2001 3/13/2001 <br /> DRILLING CONTRACTOR: TOP OF CASING ELEVATION AND DATUM(FMSL) <br /> All Terrain 8.52 <br /> DRILLING METHOD: SIZE: BORING TOTAL FINAL STATUS: SCREEN INTERVAL: <br /> Hollow Stem Auger 8"O.D. DEPTH: 20 Well 7.04- 17.09 <br /> DRILLING EQUIPMENT: BIT TYPE: DEPTH TO FIRST COMPL. 24 HR. <br /> CME 650 WATER <br /> SAMPLING METHOD: LOGGED BY: <br /> Drive Bradley Loewen <br /> SAMPLER TYPE: RESPONSIBLE PROFESSIONAL: REG. NO.: <br /> Modified CA Split Spoon Philip P Ross, R.G. 4155 <br /> DESCRIPTION <br /> a na 3 0 E U NAME: color, moisture, %by weight, REMARKS <br /> W w M �z m o 0 a U) plasticity, consistency,structure, cementation, o <br /> U) reaction w/HCI,geologic interpretation <br /> ML SILT:dark yellowish brown (10YR 3/4), moist,grading to wet. 100% Oxidized sediments to 8' <br /> fines, non-plastic bgs <br /> 2- <br /> 4-- <br /> 3 43 <br /> 6 <br /> -- <br /> laminated,slight iron oxide stained layers,very soft <br /> 8 --- - '• <br /> CH -------------------------------------------- Reduced sediments to <br /> FAT CLAY:dark bluish gray(GLEY2 5PB 3/1),wet, 100%fines, - :. BOH <br /> 12 medium plasticity, massive,stiff <br /> 10 WL(3/20/01) <br /> POORLY GRADED SAND:dark bluish gray(GLEY2 5PB 3/1).-100 _ <br /> fine sand,trace fines, massive. <br /> 12- <br /> 14-- <br /> 7 <br /> 2147 WL(9/04/02, 5/01/03) <br /> 16 PT HIGHLY ORGANIC SOILS: black(GLEY1 N 2.5/),wet, 100%organic <br /> plant material, medium stiffness <br /> 18- <br /> 20— 7 <br /> B.O.H.@ 20 feet. <br /> 22- <br /> 24- <br /> 26- <br /> 28- <br /> 30- <br /> 32 <br /> 22426283032 <br /> Project No.008324.000.0 SHEET 1 OF 1 <br />