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GEOMATRIX <br /> Port of Stockton Log of Well No. MW- <br /> Roberts Island No. 1 <br /> BORING LOCATION: DATE STARTED: DATE FINISHED: <br /> Dredge Placement Site,South portion of Western berm 3/12/2001 3/12/2001 <br /> DRILLING CONTRACTOR: TOP OF CASING ELEVATION AND DATUM(FMSL) <br /> All Terrain 10.79 <br /> DRILLING METHOD: SIZE: BORING TOTAL FINAL STATUS: SCREEN INTERVAL: <br /> Hollow Stem Auger 8"O.D. DEPTH: 29 well 16-26.05 <br /> DRILLING EQUIPMENT: BIT TYPE: DEPTH TO FIRST COMPL. 24 HR. <br /> CME 650 WATER 14.25 <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 /> aE E c o c >a U NAME:color,moisture,%by weight, —'m <br /> W v E cc m o O a j plasticity,consistency,structure,cementation, : REMARKS <br /> o to U) reaction w/HCI,geologic interpretation <br /> SM SILTY SAND:olive brown(2.5Y 4/4),moist,80%fine to medium Oxidized sediments to <br /> sand,20%non-plastic fines,some layered fines,medium dense 19'bgs <br /> 2 <br /> 4 <br /> \ 25 <br /> 6 Drilling not as firm as <br /> MW-2 8—dense sand <br /> 10 21 <br /> SM SILTY SAND:continues with 30%fines, nonplastic <br /> 12— <br /> -.7 <br /> 14 SM <br /> 16 SILTY SAND:continues,medium dense <br /> WL(3/20/01) <br /> 16 ------------------------------------------------- <br /> SC CLAYEY SAND:very dark grayish brown(2.5Y 3/2),wet,-70%fine ' <br /> to medium sand,-30%low to medium plasticity fines,medium dense <br /> 18 sand <br /> Reduced sediments to <br /> BOH <br /> :`. WL(9/04/02,5/01/03) <br /> 20 <br /> 12 <br /> CL SANDY LEAN CLAY:blue <br /> 22 PT--- - <br /> HIGHLY ORGANIC SOILS:black(5Y 2.5/1),wet, 100%organic plant <br /> material _ <br /> 24-- <br /> 8 <br /> 26- <br /> 28- <br /> 30 <br /> 62830 \\ 6 <br /> B.O.H.@ 29 feet. <br /> 32 <br /> Project No.008324.000.0 SHEET 1 OF 1 <br />