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SOIL BORING LOG AND MONITORING WELL COMPLETION DETAILS Monitoring Well AS-1 <br /> Project Name Singh's Unocal Project Location 574 West Grant Line Rd, Tracy, CA Page 1 of 1 <br /> Driller Gregg Drilling, Martinez, CA Type of Rig Hollow-Stem Auger Size of Drill 8 0" Diameter <br /> Logged By Erik H Paddleford Date Drilled August 14, 2001 Checked By Robert E Kitay, R G <br /> WATER AND WELL DATA Total Depth of Well Completed 16 0' <br /> Depth of Water First Encountered 6 5' Well Screen Type and Diameter 2" Diameter PVC Casing <br /> Static Depth of Water in Well NA Well Screen Slot Size 0 020" <br /> Total Depth of Boring 16 0' Type and Size of Soil Sampler 2 0" 1 D Split-Barrel Sampler <br /> SOIUROCK SAMPLE DATA <br /> 0 <br /> �i DESCRIPTION OF LITHOLOGY <br /> ILL BORING ii @M Q 0 - E standard classification, texture, relative moisture <br /> DETAIL U ° $' J__ <br /> density, stiffness, odor-stamen , USCS designation <br /> c m O � <br /> 0 Street Box 0 Asphalt <br /> Locking Well Cap s srs s s Clayey SILT (ML), dark gray' moist medium stiff, 60% <br /> . • . . rsfiafi.�t.�fi <br /> Portland Cement PYNYP„Y�s,�s silt, 40% clay, trace sand, trace gravel to 0 5" <br /> .'.'• ' r ' sssss diameter, low plasticity, very low estimated K <br /> .'.'• '•'•' > 5&5p'spS, moderate hydrocarbon odor <br /> 5 . . . . , o <br /> is •;•;• ;•;•; t 2 5 Silty CLAY (CL), brown, moist, medium stiff, 60% clay, <br /> =' (n 3 831 1 40% silt, medium plasticity, very low estimated K, <br /> •r•r♦ ,•,�, 0 c slight hydrocarbon odor <br /> .'. . m wet at 6 5' <br /> m <br /> •r•r• r•rkr � <br /> 1 0 _ <br /> •`•`• '•'•' `\1 s 70 10 Light brown, wet, stiff, low plasticity, no odor <br /> • • . <br /> 6 <br /> C <br /> ca <br /> T <br /> 15 °-' 7 15 <br /> c o 12 's Silty SAND (SP), brown, wet, medium dense, 90% fine to <br /> Nmedium sand, 10% sill, non-plastic, high estimated K, no <br /> U) N r <br /> j End of Boring at 16 feet <br /> a. <br /> 20 v 20 <br /> 0 <br /> 0 <br /> N <br /> O <br /> O <br /> 25 N 25 <br /> 30 30 <br /> A 011J A 3 it 1j�� 1�1 J fjV}iy fit lel a <br />