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MrSckiweAWkaffons' <br /> /ntemafiona/Coywadon Project No: 06-6102-00-4700-201 Page 1 of 1 <br /> O M F1ry,b)ee-Owmd�Ayq' - <br /> PROJECT: POMBO PROPERTY <br /> Tracy,Califomia Log of Boring No. SB-4 <br /> BORING LOCATION: N 2093557.1510,E 6287567.5260 ELEVATION AND DATUM: US State Plane NAD 83 Zone 3 <br /> DRILLING CONTRACTOR: Gregg Drilling and Testing,Inc. DATE STARTED: DATE COMPLETED: <br /> 11/5/03 10:02 _ 1115/03 10:36 <br /> DRILLER:Paul Rogers TOTAL DEPTH(ft): MEASURING POINT: <br /> 12' Ground Surface <br /> DRILLING METHOD: Direct Push Continuous DEPTH TO WATER(ft): 8.4T <br /> TIME: 1 10:12 <br /> DRILLING EQIUPMENT: Geoprobe GEOLOGIST:Kim Burckle <br /> SAMPLING METHOD: Macrocore REVIEWED BY: <br /> SAMPLES U <br /> DESCRIPTION <br /> >a m o a a m a g NAME(USCS):color,moist,%by wt.,plast and density. <br /> O0E-6 u—4) <br /> m U <br /> w C7 Surface Elevation: NA <br /> 6"Asphalt-- --- ———— <br /> Boring hand augered to 5'bgs. <br /> 1 <br /> ML Native material observed to be silt during borehole clearance. <br /> 2-- <br /> 3-- <br /> 4 34 <br /> SB-4-5 <br /> 10:13 5 <br /> ML Sandy Silt(ML);yellowish brown(10yr 4/4);moist;low plasticity;35%silt, <br /> 0.2 30%sand,35%clay,with very fine sand. <br /> 6- <br /> 7– <br /> ---- - ---- ------------ <br /> OA <br /> e <br /> 7 <br /> 0.4 ------ <br /> SB-48 / CL Q Lean Clay(CL);yellowish brown(10yr 4/3);moist;low plasticity;very fine <br /> 10:12 8 — sand;rootholes;no odor. <br /> 0.3 9 :_} <br /> 10- <br /> 11 <br /> .. <br /> SC ClaSand(SC);yellowish brown(10yr 4/4);moist;low plasticity veryfine sand; <br /> yey <br /> 0.4 12 no odor. ————— <br /> Boring terminated at 12'bgs. <br /> 13 ° <br /> 14-- <br /> 15 <br /> 16- <br /> 17- <br /> 18 <br /> 61718 <br /> i <br /> 19-- <br /> 20-- <br /> NOTES: <br /> 920NOTES:Groundwater sample GW-4 taken Qa 10:20. <br /> Boring abandoned,borehole backfilled to surface grade with neat cement: <br /> i <br /> i <br /> j <br /> .. 1 <br />