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LOG OF EXPLORATORY BORING 44 <br /> ' PROJECT NUMBER F90-02.01 BORING NO. B92-1 <br /> iPROJECT NAME A.Teichert&Son,Inc. PAGE 1 OF 3 <br /> BY D.Buchanan DATE 8/13192 SURFACE ELEV. 20.56 ft. <br /> ' PENETRA- N3. <br /> WLITHO- WELL <br /> FID RECOVERY TION j Q itGRAPHIC DESCRIPTION DETAIL <br /> U Ll (n COL[1HQQ <br /> (ppm) (ft/ft) (blwa/ft) —( L'�( N <br /> ASPHALT <br /> FEL,GRAVELLY SAND(SP),very dark gray <br /> (10YR,3/1). <br /> CLAY(CH),black(5Y,2.5/1);high plasticity fines; <br /> trace fine sand;damp; moderate product odor. <br />' 0 0.5/1.5 5 @ 5': Dark gray(5Y,4/1); iron oxide staining <br /> along rootholes common; very stiff,damp;faint <br /> 20 to moderate product odor. <br /> CLAYEY SILT(NII.),dark grayish brown(2.5Y, <br /> 4/2); 85%low plasticity fines; 15% fine sand, <br /> _ subangular,quartz;mangangese oxide staining; <br /> 0 1.5/1.5 10 rootholes; very stiff;damp;no to faint product <br /> odor. <br /> 20 <br /> 1 <br /> SAND(SP),brown(10YR,5/3),5%fines;95%fine <br /> sand,85%quartz, 10%feldspar,5%dark grains; <br /> ; ; caliche common;manganese oxide staining;dense; <br />' 15 . . ; damp;no product odor. <br /> 0 1.4/1.5 <br /> 31 • • <br /> SILT(NII,),mottled dark grayish brown (2.5Y,4/2) <br /> and gray(5Y,5/1);low plasticity fines;trace fine <br /> sand;stiff;damp;no product odor. <br /> 20 <br /> REMARKS <br /> Soil boring was drilled using 6-inch diameter hollow-stem auger drilling equipment and sampled with a modified <br /> Califomia split-spoon sampler equipped with stainless steel liners.Boring was backfilled to the surface with cement <br /> bentonite grout. <br /> ASSOCIATES <br />