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PROJECT: ROBERTS PROPERTY <br /> Vernalis, California Log Of Boring NO. SB-19 <br /> o o ELEVATION AND DATUM: <br /> BORING LOCATION: GPS N:37 62.918';W: 121 28.570' <br /> Not surveyed;datum is qround surface <br /> DRILLING CONTRACTOR: ResonantSonlc International DATE STARTED: DATE FINISHED: <br /> 8/13/03 8/13/03 <br /> F*:' DRILLING METHOD: Sonic drilling TOTAL DEPTH(ft.): MEASURING POINT: <br /> 70.0 Ground surface <br /> t DRILLING EQUIPMENT: ROtosonic rig 114 DEPTH TO WATER(ft.)I FIRST 34.5 ' CO PL <br /> ,r LOGGED BY:LO <br /> NA <br /> SAMPLING METHOD: 5-foot continuous core system [5'x 3111 LOM. GOER <br /> HAMMER WEIGHT: NA DROP: NA RESPONSIBLE PROFESSIONAL: I REG.NO. <br /> f <br /> SPLES r7 DESCRIPTION <br /> Y. Hashimoto CH.G. 782 JAM <br /> a w n n H g o E NAME(USCS): color,moist,%by wt.,plast.density,structure, REMARKS <br /> w•°-� E Z o E o a O a cementation,read.w/HCI,geo.inter. <br /> 0` V) N mLL <br /> of <br /> �_. Surface Elevation: Not surveyed <br /> AGGREGATE BASE <br /> (t, Global positioning system <br /> SANDY SILT(ML): brown (10YR 4/3),moist,60%fines,40% - (GPS)coordinates for <br /> fine sand,nonplastic,soft - <br /> boring location acquired <br /> o using a hand-held <br /> 2 - Garmin"m GPS-5 unit. <br /> 3 0 <br /> - 3 _ <br /> JOVM=Thermo <br /> - Environmental <br /> 4 _ Instruments 580B PID <br /> calibrated with 100 ppm <br /> 1( - isobutylene standard. <br /> J0 - <br /> 5 <br /> 3 <br /> _ 0 - <br /> � �. <br /> 6- <br /> T70%T70%fines,30%fine sand Hand augered to 5 feet <br /> - bgs. <br /> 8 <br /> 0 SILT with SAND(ML): brown (10YR 4/3),moist,80%fines, <br /> 11 20%fine sand,low plasticity,hard - <br /> J' 9 <br /> 10 <br /> SANDY SILT(ML) brown (10YR 4/3),moist,70%fines,30% <br /> 0 fine sand,nonplastic,firm - <br /> �.T <br /> 12 _ <br /> L2 o T hard <br /> 13- <br /> 14- <br /> 0 <br /> 314o - <br /> }{t a <br /> 15 <br /> OAKBOREV(REV.OIOY) <br /> _ Geomatrix Consultants Project No.5011.01)1 Page 1 of 5 <br />