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► Project No: 06-6102-00-4926-301 Page 1 of 2 <br /> Any <br /> PROJECT: TRACY BYRO N ROAD Log of Boring No. SB-20 <br /> Tracy, California <br /> BORING LOCATION: N 209511.4450,E 6282059.3260 ELEVATION AND DATUM: US State Plane NAD 83 Zone 3 <br /> DRILLING CONTRACTOR: Gregg Drilling and Testing,Inc. DATE STARTED:/TIME: DATE COMPLETED:/TIME: <br /> 10/27/03 8:20 10/27/03 10:00 <br /> DRILLER: Paul Rogers TOTAL DEPTH(ft.): MEASURING POINT: <br /> 28 Ground Surface <br /> (ft.): <br /> DRILLING METHOD: Direct Push Continuous DEPTH TO WATER 15.5'TIME: <br /> DRILLING EQIUPMENT: Marl M5 T Rhino Rig GEOLOGIST: Will Slowik <br /> SAMPLING METHOD: Macrocore REVIEWED BY: <br /> SAMPLES U <br /> DESCRIPTION <br /> E v o a a Q NAME(USCS):color,moist, %by wt.,plast.and density. <br /> O o o E-a w,a? <br /> 00 LL in O U Surface Elevation: NA <br /> Road Base to 1.5'bgs <br /> Boring hand cleared to 5'bgs. <br /> 1 <br /> 2 CL Native Material observed to be Clay during borehole clearance. <br /> 3-- <br /> 4-- <br /> SB-20-5 4SB-20-5 <br /> 8:43 5 <br /> CL Sandy Lean Clay(CL);yellowish brown(10yr5/4);moist;low plasticity;70-75% <br /> 0.0 clay,25-30%fine to very fine sand. <br /> 6 <br /> 7 <br /> 0.0 Y <br /> SB-20-8 <br /> 8:49 8 <br /> 9 <br /> SB-20-10 <br /> 8:57 10 <br /> CL Lean Clay with Sand(CL);yellowish brown(10yr5/4);moist;medium plasticity; <br /> 0.0 80-85%clay,15-20%sand. <br /> 11 <br /> SB-20-12 <br /> 8:59 12 <br /> 0.0 df d r <br /> 13 <br /> 14 <br /> SB-20-15 <br /> 9:07 15 <br /> 0.0 — <br /> SC Clayey Sand(SC);yellowish brown(10yr5/4)to brown(10yr4/3);saturated; <br /> 16 I ' 55-60%sand,40-45%clay. <br /> 17- <br /> 18- <br /> 'A <br /> 7 18 <br /> 19 <br /> SC Clayey Sand(SC);brown(10yr5/4);saturated;80-85%sand,15-20%clay. <br /> I <br /> 20 <br /> NOTES: Groundwater sample GW-20 collected @ 9:50. <br />