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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 20805-147.004 BORING NO. B-9/MW4 <br /> PROJECT NAME ARCO 2186 PAGE 1 OF 4 <br /> BY M Capps DATE 10130/97 SURFACE ELEV. 14.5 ft. <br /> FID Blow Recovery CA . l(0 LITHO- WELL <br /> Readings t4tmts �j GRAPHIC DESCRIPTION DETAIL <br /> CL <br /> ow wt COLUMN <br /> (ppm) (btw/ft) (ft/ft) _j <br /> ASPHALT c <br /> ASPHALT <br /> 4 _ <br /> FII L;base rock <br /> 4 <br /> SQ.T(ML);very dark grayisb brown (10YR, 3I2); <br /> 100% low plasticity fines; trace fine sand; damp; <br /> no odor. <br /> 17 <br /> SILT(ML); yellowish brown(IOYR 5/6); 85% low �. <br /> 5 plasticity fines; 5% fine sand; 10% gravel; damp; o- <br /> 0.0 90/10" 1.011.5 no odor. <br /> @ 5 ft: no gravel; 95% low plasticity fines, 5% <br /> fine sand; iron oxide mottling over 15% of <br /> sample; damp; hard;no odor. <br /> @ 8 ft: color change to dark yellowish brown <br /> (10YR, 4/4) <br /> 0.0 55 1.2/1.5 10 @ 10 ft: 100% low plasticity fines; trace fine <br /> sand; no iron oxide staining; damp; hard. <br /> 0.0 28 1 1.2/1.5 15 ® 15 ft: 95% low plasticity fines; 5% fine sand; <br /> iron oxide mottling over 15 to 20%; damp; very <br /> stiff; no odor. <br /> :� <br /> 't <br /> �0 <br /> REMARKS <br /> Boring drilled using !O-inch-diameter,hollow-stem auger drilling equipment and sampled with a modified Califomia <br /> split-spoon sampler.Boring converted to a 4-inch diameter monitoring well.See Well t)etails sheet for well <br /> construction information. <br /> E ON <br /> r <br /> i <br />