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i <br /> PROJECT: ROBERTS PROPERTY <br /> ' Vernalis, California Log Of Boring No. SB-16 <br /> 1 - BORING LOCATION: GPS N:370 62.874';W:121'28.590- ELEVATION AND DATUM: <br /> Not surveyed;datum is round surface <br /> DRILLING CONTRACTOR: ResonantSonic International DATE STARTED: DATE FINISHED: <br /> 8/7/03 8/7/03 <br /> DRILLING METHOD: SODIC drilling TOTAL DEPTH(ft.):. MEASURING POINT: <br /> 60.0 Ground surface <br /> DRILLING EQUIPMENT: Rotosonic rig 114 DEPTH TO WATER(ft.)I FIRST I COMPL. <br /> 44.0 NA <br /> SAMPLING METHOD: 54001:Continuous core system [5'x 3"1 LOGGED BY: <br /> M. GoenJY. Hashimoto <br /> HAMMER WEIGHT: NA DROP: NA RESPONSIBLE PROFESSIONAL: REG.NO. <br /> Y. Hashimoto CH.G. 782 <br /> -I SAMPLES 0 DESCRIPTION <br /> ' I=- m m -a �z E NAME(USCS): color,moist,%by wt.,plast.density,structure, REMARKS <br /> W' E Z E o a 0 W a cementation,react w/HCI,geo.inter. <br /> N m Surface Elevation: Not surveyed <br /> o SANDY SILT(ML): dark grayish brown (10YR 4/2),dry,60% <br /> -� <br /> fines,30%fine sand,nonplastic,very soft - <br /> ' ¢�= 0 Global positioning system <br /> (GPS)coordinates for <br /> boring location acquired <br /> using a hand-held <br /> 2 - GarminTA1 GPS-5 unit. <br /> ._� 3 <br /> OVM=Thermo <br /> z - - Environmental <br /> 4 0 _ Instruments 580B PID <br /> o calibrated with 100 ppm <br /> L. m <br /> - isobutylene standard. <br /> 0 T brown(1OYR 4/3),moist,firm OVM readings shown in <br /> parentheses()are over <br /> 6 the 1000 ppm upper range <br /> of the instrument. <br /> 7 <br /> Hand angered to 5 feet <br /> bgs. <br /> 8 <br /> 9- <br /> 10- <br /> 0 100 <br /> 11- <br /> 12- <br /> 13- <br /> 14 <br /> 112 13 14 <br /> n <br /> 3' 15 <br /> _ eye 1:1PROJECT1500s150111GINTLOG51SB1GLOG K-2 7(k <br /> 310 <br /> Geomatrix Consultants Project No.5011.001 Page 1 of 4 <br />