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to <br /> S ECOR <br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number. <br /> 7-Eleven#19976 <br /> C.Ryan 11/29/06 Gregg Drilling Manteca,CA Hollow Stem SP-2 <br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): 26 First Depth(ft.): wt.(lbs): Dist.(in.): <br /> g 40.0 140 30 <br /> Well a Z <br /> Description u a <br /> Construction <br /> TRAFFIC —Asphalt <br /> s' RATED Hand Auger to 5'bgs. <br /> WELL BOX <br /> Clayey Silt in hand auger cuttings,(0,5,50,45) <br /> SILTY,VERY FINE TO FINE SAND(SM-ML): Dark <br /> 5 2 Brown(IOYR 3/3),fine grain sand,subangular,loose, 0.1 SP-2 Ol l5 <br /> 3 damp,no HC odor,(0,90,10,0) @ <br /> :.+ 51 <br /> 4 <br /> 4 ; SAND w/SILT(SW): As Above,loose,(0,90,10,0) 0.0 SP-2 0120 <br /> y :, 7 @10, <br /> 10 16 <br /> 'f t <br /> 3 CLAY w/SILT(CL): Strong Brown(1 OYR 4/6),high 0.0 SP-2 0125 <br /> 6 plasticity,high toughness,damp,stiff,no HC odor, @15' <br /> 15 10 (0,0,20,80) <br /> GROUT <br /> 4 CLAYEY SILT(ML): Strong Brown(10YR 4/6),high 0.0 SP-2 0130 <br /> 8 plasticity,high toughness,wet,soft,no HC odor, @20' <br /> 20 10 (0,0,75,25) <br /> 20SILTY VERY FINE TO FINE SAND(SM-ML): Brown 0.2 SP-2 0137 <br /> 50/6 (10YR 4/3),very fine grain,subangular,medium plasticity, @25' <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling. Predominant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated. Descriptions on this log apply only at the specific location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times. <br /> Project No. 77EL.19976.06.0603 Date 11/28/2006 Log of Well <br /> MW-8&SP-2,3.GPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of 2) <br />