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0 <br /> PARSONS Boring/Well ID: MW-16 <br /> Project Name and Address: BP Stockton,3437 South Airport Way,Stockton CA <br /> Boring Location(at site): 1436 East Carpenter Road,in street Project No.:442966.71000 <br /> Subcontractor and Equip.:Gregg Drilling,Marl M-11,8"Hollow stem auger Logged By:Jennifer Kraft <br /> Sampling Method: 18"x 2"Split-spoon Monitoring Device(s):N/A <br /> Start Date&Time: 12/4/07,8 am Finish Date&Time: 12/4/07,3 pm <br /> First Water:N/A Stabilized Water Level bgs):N/A <br /> Surface Elevation: N/A Casing Top Elevation:N/A <br /> Total Well Depth(s):99' Boring Diameter and Depth:8", 101' <br /> Casing Diameter(s):2" Screen Interval(s):84-99'bgs <br /> Filter Pack:#2/12 Sand 1131oring Angle:Vertical <br /> Seal Material: Portland Type 1/II Cement 80',Bentonite Pellets 2' 1 Permit No.:San Joaquin Co., EHD SR#52718 <br /> „ Zn a) o, Lithologic Description <br /> a) a ; z g g - (classification,color,moisture,density,grain size/plasticity,other) — <br /> m 0 a Cn c Q °' D � All percentages are approximate unless otherwise stated 3 U <br /> _ Boring in asphalt-cookie cutter 18"-hand auger to 5'bgs <br /> 8:40 5 _ <br /> Drilled directly to 78.5'with hollow-stem auger <br /> 1 10 _ <br /> Clay balls and moisture in cuttings at 15'bgs <br /> 1 <br /> - 15 <br /> 1 <br /> 1 20 <br /> 1 <br /> - 25 <br /> ' 30 <br /> 1 <br /> 35 <br /> 9:00 _--40 <br /> _ CL 45'cutting-Lean clay(CL): -80%clay,20%sand,trace fine sand ; <br /> 45 Low-moderate moisture,yellowish-brown,grains of fine mica visible, stiff <br /> 9:20 i - 50 <br /> 55 <br /> 60 - <br /> 65 <br /> 9:40 _--7_0 .w <br /> - 75 <br /> SM <br /> 10:00 12/12/12 118" 80 78.5-80': Silty sand (SM), medium dense,w/clay layer--79.5' bgs <br /> ------ SM <br /> 10:15 5/4/4 ;18" 85 83.5-85': Same as above but uniform sample-very loose <br /> ------ <br /> SIM - <br /> 10:40 12/14 112" 90 89-90': Same as above-medium dense <br /> 1 <br /> 10:55 95 _ <br /> 4/16/23 ;18" _ SM 95-96': Same as above-medium dense <br /> 1 100 ML 96-96.5': Silt(ML)- medium dense <br /> Grout 1-80'bgs, Bentonite Pellets 80-82'bgs,#2/12 Sand 82-100' bgs <br /> _ 2"OD Schedule 40 PVC,0.020"screen 84-99' bgs <br /> 1 Total depth at 101' bgs,Well Bottom at 99'bgs <br /> 1 <br /> Page 1 of 1 <br />