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LOG OF EXPLORATORY BORING <br /> • PROJECT NUMBER F90-02.01 BORING NO. MW-12 <br /> PROJECT NAME A. Teichert & Son, Inc. PAGE 3 OF 5 <br /> BY D.Buchanan DATE 8/12192 SURFACE ELEV. 20.57 ft. <br /> PENETRA- 1ppw <br /> WELL <br /> PID RECOVERY TION 0 0. GRAPHIC DESCRIPTION DETAIL <br /> W LIQ 1: COLUMN <br /> (PPM) (ft/ft) (blas/ft) <br /> 0 1.1/1.5 SILTY SAND(continued) <br /> @ 40': Occasional manganese oxide staining; <br /> 47 iron oxide staining common; no product odor. <br /> SILT(ML),yeIlowish brown (10YR,5/4); low <br /> plasticity fines, trace fine sand,quartz;caliche <br /> common Iocally; hard;damp; no product odor. <br /> 0 1-1/1.5 45 <br /> 53 <br /> • CLAYEY SAND(SQ,grayish brown(10YR,5/2); <br /> 20%medium plasticity fines; 80% fine sand, <br /> subangular,quartz,trace feldspar, trace dark <br /> grains;occasional iron oxide and manganese <br /> 0 1.0/1.0 50 oxide staining;hard; damp;no product odor. <br /> 72 <br /> 0 0.9/1.5 55 <br /> 68 @ 56.5': Brown(10YR,5/3); iron oxide staining <br /> abundant;occasional caliche; very dense;damp; <br /> no product odor. <br /> TSAND(SP),olive brown(2.5Y,4/4); trace fines; <br /> fine sand,angular to subangular,90%quartz, <br /> 5-10%dark grains,trace feldspar; (bluish)gray <br /> (2.5Y,N5/0)staining;rootholes common; very <br /> 60 dense;damp;no product odor. <br /> REMARKS <br /> Soil boring was drilled using 8-inch diameser hollow-sum auger drilling equipment end sampled with a modified <br /> California split-spoon sampler equipped with stainless steel linen.See aaached well details for well construction <br /> information. <br /> E N <br /> ASSOCIATES <br />