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GEOMATAIX <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,Southern berm 3/13/2001 3/13/2001 <br /> DRILLING CONTRACTOR: TOP OF CASING ELEVATION AND DATUM(FMSL) <br /> All Terrain 11.73 <br /> DRILLING METHOD: SIZE: BORING TOTAL FINAL STATUS: SCREEN INTERVAL: <br /> Hollow Stem Auger 8"O.D. DEPTH: 25 well 14.37-24.4 <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 /> H^ a 2 Z E U NAME:color,moisture,%by weight, —'m <br /> w E O_o 0 a plasticity,consistency,structure,cementation, 3�, REMARKS <br /> o W m O– reaction w/HCI,geologic interpretation <br /> SM SILTY SAND:olive brown(2.5Y 4/3),moist,70%fine to medium Oxidized sediments to <br /> sand,30%non-plastic fines,massive with minor clay filled cavities, 19'bgs <br /> 2 very dense sand <br /> 4 <br /> 82 <br /> 6 <br /> 8 <br /> SM SILTY SAND:very dark grayish brown(2.5Y 3/2),moist <br /> 10 30 <br /> 12— <br /> ------------------------------------------------------------------------------------------------ . <br /> SP POORLY GRADED SAND:olive gray(5Y 4/2),wet, 100%fine to - - <br /> 14 medium sand with trace fines,medium dense,comprises–75%of <br /> 27 this unit, INTERBEDDED WITH FAT CLAY(CH): 100%fines, - <br /> medium plasticity,stiff,comprises–25%of this unit WL(3/20/01) <br /> 16 <br /> 18 <br /> _ ______ _______ _ ___________ _ ________ ' WL(9/04/02) <br /> CHReduced sediments to <br /> 20 19 FAT CLAY:black(GLEY1 N 2.5/),wet,layered plant material and BOH <br /> clay,common,high plasticity,black clay WL(5/01/03) <br /> 22 <br /> 24 OL/OH ORGANIC SOIL:black(GLEY1 N 2.5/),wet, 100%layered plant <br /> material <br /> 15 <br /> 26 B.O.H.@ 25 feet. <br /> 83032 28- <br /> 30- <br /> 32 <br /> Project No.008324.000.0 SHEET 1 OF 1 <br />