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1 _ <br /> PROJECT: ROBERTS PROPERTY LO of Boring No. SB-17A <br /> Vernalis, California g g <br /> BORING LOCATION: GPS N:37°62.944';W: 1210 28.672' ELEVATION AND DATUM: <br /> Not surveyed;datum is ground surface <br /> DRILLING CONTRACTOR: ResonantSOnlc International DATE STARTED: DATE FINISHED: <br /> 8/8/03 8/8/03 <br /> 'l DRILLING METHOD: Sonic J drilling TOTAL DEPTH(ft.): MEASURING POINT:15.0 1 Ground surface <br /> DRILLING EQUIPMENT: Rotosonic rig 114 DEPTH TO WATER(ft.)I NA FIRST I COMPL.NA <br /> - SAMPLING METHOD: 5-foot continuous Core system [5'x 3"] LOGGED BY: <br /> M. Goerz <br /> -� HAMMER WEIGHT: NA DROP: NA RESPONSIBLE PROFESSIONAL: REG.NO. <br /> Y. Hashimoto CH.G.782 <br /> SAMPLES 0 DESCRIPTION <br /> tz-m v TE <br /> M Z NAME(USCS): color,moist,%by wt.,plast.density,structure, REMARKS <br /> w E d > < a cementation,react.w/HCI,geo.inter. <br /> W--- <br /> SurfaceElevation: Not surveyed <br /> SILTY GRAVEL(GM): dark grayish brown (10YR 4/2),moist, <br /> 75%coarse gravel, 15%nonplastic fines, 10%fine sand Global positioning system <br /> 1 — (GPS)coordinates for <br /> _ = boring location acquired <br /> using a hand-held <br /> I, a 2 GarminT"GPS-5 unit. <br /> 3- <br /> 4- <br /> 5- <br /> 6- <br /> 7- <br /> 8- <br /> 9 456789 <br /> 10 POORLY GRADED GRAVEL(GP): gray (5Y 6/1),dry, 100% <br /> coarse gravel(up to 3"diameter) [FILL] <br /> 11 <br /> large fragment of wood — <br /> ll s' <br /> 12- <br /> 13 <br /> 2 13 <br /> ' Borehole destroyed using <br /> s <br /> — Type 1-11 neat cement <br /> 14 _ grout placed from total <br /> depth to ground surface <br /> 3: — with a tremie pipe. <br /> 15 <br /> Bottom of boring at 15.0 feet <br /> -• OAKBOREV(REV.LOO) <br /> Geomatrix Consultants Project No.5011.001 Page 1 of 1 <br /> i <br /> a . <br />