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1 <br /> LOG OF EXPLORATORY BORING <br /> ' PROJECT NUMBER F90-02.01 BORING NO. B92-1 <br /> . PROJECT NAME A.Teichert&Son,Inc. PAGE 2 OF 3 <br /> ' BY D.Buchanan DATE 8/13/92 SURFACE ELEV. 20.56 ft. <br /> ' PENETRA- WELL <br /> ��g� +uj) LW LITHO- <br /> PID RECOVERY TION �yilW GRAPHIC DESCRIPTION DETAIL <br /> O�¢W E COLUMN <br /> (ppm) (ft/ft) (bless/ft) <br /> U1 <br /> 0 1.3/1.5 SILT(ML)(continued) <br /> 15 <br /> SANDY CLAY(CL),grayish brown(2.5Y,5/2), <br /> 65%medium plasticity fines; 35%fine sand, <br /> 1 subangular,90%quartz,5-10% feldspar,trace <br /> 0 1.0/1.5 25 dark grains;iron oxide staining common;caliche <br /> common;manganese oxide staining rare; very <br /> 30 stiff;damp;no product odor. <br /> SAND(SPI brown IOYR 4 5%nonplastic Eales <br /> ,r 95%fine sand,95%quartz,5%dark rock <br /> ❑ 1.3/1.5 30 fragments,trace feldspar; manganese oxide <br /> staining;very dense;damp;no prod2ct odor. <br /> 53 -�►YEY SELT(ML),light olive brown(2.5Y,5/4); <br /> 85%medium plasticity fines; 15%fine sand; trace <br /> medium sand;sand is subangular to subrounded, <br /> 95%quartz,5%dark rock fragments;damp;no <br /> product odor. <br /> SAND(SP),dark grayish brown(2.5Y,4/2); trace <br /> fines;20%fine sand;75-80%medium sand; sand <br /> is 50% quartz,50%rock fragments(metamorphic <br /> 0 1.5/1.5 35 and igneous rock fragments and chert);trace <br /> coarse sand,subrounded,rock fragments,quartz; <br /> 37 ' ' ' dense;damp;no product odor. <br /> CLAYEY SILT(NII.),light olive brown(2.5Y,5/4); <br /> 85%medium plasticity fines; 15%fine sand; trace <br /> medium sand;sand is subangular to subrounded, <br /> quartz,5%dark rock fragments; iron oxide and <br /> manganese oxide staining common;damp;no <br /> product odor. <br /> 40 SILTY SAND(SM)(continued on next page) <br /> REMARKS <br /> Soil boring was drilled using 6-inch diameter hollow-stem auger drilling equipment and sampled with a modUied <br /> California split-spoon sampler equipped with stainless steel linen.Boring was backfilled to the surface with cement <br /> bentonite grout. <br /> E N <br /> ASSOCIATES <br />