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f' <br /> PROJECT: ROBERTS PROPERTY <br /> Vernalis, California Log of Boring No. SB-21 (cont'd) <br /> SAMPLES C7 - r <br /> DESCRIPTION REMARKS <br /> o v z o*6 O n NAME(USCS):color,moist,%by wt.,plast.density,structure, <br /> m N m W cementation,react w/HCI,geo.inter. <br /> r <br /> CLAYEY SAND(SC): brown (7.5YR 4/3),moist,60%fine _ <br /> 0 sand,40%low plasticityfines,no odor <br /> 8890 88- <br /> 89- <br /> 0 <br /> m — { <br /> 90 m - <br /> N <br /> 91 - <br /> 92 F <br /> 93 <br /> 94 - <br /> 95 <br /> Hydropunch driven ahead - L <br /> of sonic drive casing from <br /> 96 - 90 to 100 feet bgs.Sleeve r. <br /> retracted 4 feet to expose <br /> a 1-inch OD Schedule 40 <br /> 97 - PVC screen(0.010-inch <br /> slot size)from 96 to 100 <br /> feet bgs.Grab r <br /> 98 groundwater Sample - <br /> - SB-21-083 collected. " - <br /> F <br /> 99- <br /> 100- <br /> Bottom <br /> 9100 Bottom of boring at 100.0 feet Borehole destroyed using <br /> Type 1-II neat cement <br /> 101 grout placed from total <br /> depth to ground surface <br /> with a tremie pipe. - <br /> 102 - is`:: L <br /> 103- <br /> L <br /> 104 <br /> t <br /> 105 <br /> OAKEOREV(REV.LOU) ` r <br /> Geomatrix Consultants Project No.5011.001 Page 6 of 6 <br />