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SOIL BORING LOG AND MONITORING WELL COMPLETION DETAILS Sparge Well: OS-2 <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: Hallow-Stem Auger Size of Drill: 5.0" Diameter <br /> Lagged By: Erik H. Paddleford Date Drilled: July 1, 2002 Checked By: Robert E. Kitay, R.G. i <br />` WATER AND WELL DATA Total Depth of Well Completed: 17.0' <br /> Depth of Water First Encountered: 6.5' Well Screen Type and Diameter: NA <br /> I Static Depth of Water in Well: NA Well Screen Slot Size: NA <br /> Total Depth of Boring: 17.0' Type and Size of Soil Sampler: 2.0" I.D. Macro Core Sampler j <br /> SOIUROCK SAMPLE DATA <br /> aD DESCRIPTION OF LITHOLOGY <br /> U- 0 7 {� <br /> c - E � c 1 <br /> BORING _ <br /> a a ¢� — <br /> � o � L standard classification, texture, relative moisture, <br /> DETAIL c 3 1 J m density, stiffness, odor-staining, USCS designation, <br /> o — m o c� a <br /> 0 Street Box 0 Asphalt <br /> I <br /> Tubing to Panel s,�srss Clayey SILT (ML); dark gray; moist; medium stiff; 60% <br /> ' Portland Cement s s�r,Xs silt; 40% clay; trace sand; trace gravel to 0.5" <br /> •,•,. ;,;,; s s s s s diameter; low plasticity; very low estimated K; <br /> P y l ., <br /> ,',', ',',• y S`fifi,¢S,�fi moderate hydrocarbon odor <br /> 5 �rr•�rr• <br /> � a:j �d�dfidFbfi 5 <br /> a, <br /> Silty CLAY (CL ; brown; moist; medium stiff; 60/ <br /> clay; <br /> i <br /> 1 <br /> ,�.rf'.•.r,',•� r�`,�,,,',.•rr' <br /> 40% silt; mediumplasticity; very low estimated mated K;ac slight hydrocarbon odor <br /> m , <br /> �° wet at 6.5' h <br /> r r r r r p <br /> tirkr` r~r`r — <br /> r'r1 ,,ref O <br /> 10 <br /> r r r r r <br /> r r r r r <br /> r r r r r p <br /> cc <br /> CL <br /> I <br /> —15 u- <br /> -0 15 <br /> o Silty SAND (SP); brown; wet; medium dense; 90% fine t ; <br /> CL v medium sand; 10% silt; non-plastic; high estimated K; no i <br /> r^ I <br /> m <br /> odor <br /> CL End of Boring at 17 feet <br /> 20 20 <br /> cr a <br /> X <br /> C\1 <br /> 25 25 <br /> i <br /> 30 30 i <br /> k <br /> �Ic�1�i� ��Ic fl��iiE �V�ic Ir��EW�, �G�IICo <br />