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S ECOR <br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: Boring Number <br /> CASCADE 76 Station 2787245 <br /> RX 3/17/05 DRILLING Stockton ,California HOLLOW STEM AUGER B-1 <br /> Boring Surface Groundwater Depth(ft): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): NOT ENCOUNTERED Depth(ft.): wt.(lbs.): Dist.(in.): <br /> 8 50.5 140 30 <br /> � w <br /> Wellz <br /> a 3 Description a <br /> w <br /> Construction o fl —�° a <br /> E ¢ <br /> rn rn <br /> Concrete ASPHALT <br /> Neat Cement AIR KNIFE <br /> 5 6 SILTY SAND(SM): Dark yellowish brown(IOYR 4/6),fine grained 0.0 B-1 <br /> 8 sand,dry, loose,no odor(0, 80,20) @5' <br /> 9 <br /> -------------------------------- <br /> 10 5 JJ--SILT(ML): Dark yellowish brown(10 YR 4/6),fine grained sand, <br /> 6 dry,soft,no odor,(0, 10,90) 0.0 B-1 <br /> 6 @10' <br /> ------------------ ---------------- <br /> 15 9 SILTY SAND(SM): Dark yellowish brown(1 OYR 3/6),fine grained <br /> 10 sand,dry,loose,no odor(0, 75,25) 0.0 B-1 <br /> 10 @15' <br /> 20 11 SAME AS ABOVE: Stiff <br /> 12 0.0 B-1 <br /> 14 @20' <br /> 25 14 J SAME AS ABOVE: Yellowish brown(IOYR 5/6),(0,70,30) <br /> 17 2.7 B-1 <br /> 17 @25' <br /> - ----------------------------------- <br /> 30 16 SILT(ML): Yellowish brown(10 YR 5/6)and gray(10YR 5/1), <br /> 11 medium to low plasticity,dry,medium soft,(0,0, 100) 5.4 B-1 <br /> 12 @30' <br /> 35 16 SAME AS ABOVE: Moderately cemented,caliche <br /> 15 16.4 B-1 <br /> 14 @35' <br /> 40 15 SAME AS ABOVE: Grayish brown(IOYR 5/2) <br /> 16 13.6 B-1 <br /> 16 @40' <br /> 45 16 Fat Clay(CH): Pale brown(IOYR 6/3)and gray(10 YR 5/1), fine <br /> 21 grained sand,dry,high plasticity,(0,5,95) 2.7 B-1 <br /> 20 @45' <br /> 50 26 SAME AS ABOVE: Pale brown(IOYR 6/3) <br /> 18 2.7 B-1 <br /> 17 @50' <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. 77CP.67245.00.0003 Date 3/17/2005 Log of Boring <br /> CP2787245 Bl-6—LGPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of I) <br />