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3 .. <br /> LJ PROJECT: ROBERTS PROPERTY <br /> ¢ Vernalis,California Log of Boring NO. SB-17 <br /> BORING LOCATION: GPS N:370 62.944;W: 1210 28.672' NotELEsu veved;ON DATUM: <br /> • Not surve ed;datum is ground surface <br /> DATE STARTED: DATE FINISHED: <br /> r DRILLING CONTRACTOR: ResonantSonlc International 8/g/03 8/11/03 <br /> DRILLING METHOD: Sonic drilling TOTAL DEPTH(ft.): MEASURING POINT: <br /> 70.0 1 Ground surface <br /> DRILLING EQUIPMENT: ROtosonic rig 114 DEPTH TO WATER(ft.)I FIRST COMPL. <br /> 40.0 NA <br /> -• SAMPLING METHOD: 5-foot Continuous Core system[5'x 3"] LOGGED BY: <br /> M. Goetz <br /> --� Y HAMMER WEIGHT: NA DROP: NA RESPONSIBLE PROFESSIONAL: I REG.NO. <br /> Y. Hashimoto CH.G.782 <br /> SAMPLES Q DESCRIPTION <br /> a -2.6 d y g Z E NAME(USCS): color,moist,%by wt.,plast.density,structure, REMARKS <br /> o-m o E o O¢ c, cementation,,react.w/HCI,goo,inter. <br /> O`- NZ In mLL Kv <br /> Surface Elevation: Not surveyed <br /> ' -• o SILTY SAND(SM): dark grayish brown (10YR 4/2),moist, <br /> 55%fine sand,40%nonplastic fines,5%fine to coarse gravel Global positioning system <br /> (GPS)coordinates for <br /> _ boring location acquired <br /> using a hand-held <br /> 2 — Garmin' GPS-5 unit. <br /> 1. � — <br /> S 3 SILTY GRAVEL with SAND(GM):grayish brown(10YR 5/2), OVM=Thermo <br /> moist,70%fine to coarse gravel,gray(10YR 6/1)(up to 4" — Environmental <br /> 4 0 diameter), 15%fine sand,15%nonplastic fines Instruments 5608 PID <br /> -� calibrated with 100 ppm <br /> — isobutylene standard. <br /> 5- <br /> 6- <br /> 0 <br /> 60 Hand angered to 5 feet <br /> bgs. <br /> } 7 <br /> Drillers install temporary <br /> 6-inch diameter conductor <br /> 8 _ casing to 10 feet bgs. <br /> 9- <br /> 10- <br /> L 10 <br /> 0 <br /> 12 — <br /> 13 — <br /> 14 — <br /> OANBOREV(REV.3100) <br /> Geomatrix Consultants Project No.5011.001 Page 1 of 5 <br /> n:_ <br />