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PROJECT: TRACY GRAVEL PITS <br /> Tracy, California Log of Boring No. GMX-26 (cont'd) <br /> SAMPLES 0 <br /> m m N 2 E DESCRIPTION REMARKS <br /> CU <br /> W w o E o °o O> Q a NAME(USCS):color,moist, %by wt.,plast.density,structure, <br /> o v Z m m U_ W cementation,react.w/HCI,geo. inter. <br /> LEAN CLAY(CL): cont'd <br /> 52- <br /> 0 <br /> 53 - <br /> 0 Grab groundwater sample <br /> GMX-26-082505 collected <br /> 54 0 - through 5 feet of 1-inch <br /> OD Sch. 40 PVC screen <br /> (0.010-inch slot size) <br /> 55 --------------------------------- - placed in borehole from 53 <br /> CLAYEY SAND (SC): brown (10YR 5/3),wet, 60%fine sand, to 58 feet bgs. <br /> 0 40%low plasticity fines - Enviro-core drive casing <br /> retracted from bottom of <br /> 56 --------------------------------- - boring to 53 feet bgs to <br /> 0 LEAN CLAY with SAND (CL): brown (10YR 5/3), moist, 75% _ maintain surface seal. <br /> fines, 25%fine to medium sand, low plasticity,firm <br /> 57 - <br /> 0 - <br /> 58 - <br /> Bottom of boring at 58.0 feet Borehole destroyed using <br /> Type 1-11 neat cement <br /> 59 grout placed from total <br /> depth to ground surface <br /> - with a tremie pipe. <br /> 60 - <br /> 61- <br /> 62- <br /> 63- <br /> 64- <br /> 65- <br /> 66- <br /> 67- <br /> 68- <br /> 69 <br /> 1 62 63 6465 66 67 68 69 <br /> OAKBOREV(REV.3/00) <br /> Geomatrix Consultants Project No.7066.001Page 4 of 4 <br />