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Ah Ah <br /> Project Name: Barclays Lathrop si a I Date: 8/2/93 Bworing Number: C1 <br /> Project No: 14744 Borehole Depth: 140' Surface Completion: monument <br /> IDrilling Cc: Exploration Drilling Well Depth: 117.5' Surface Elevation: <br /> Drilling Equip: Failing 1500 mud rotary Water Elev.: Logged By: JED <br /> Sampler Type: 94mm wireline Casing Elevation: Checked By: CAH <br /> to 0 <br /> Descri lion A U ❑ 3 <br /> P 1 v z ¢ Remarks <br /> res s Locking monument 3'above <br /> sass <br /> Top soil syrrs ground surface. <br /> ' rr <br /> 5%bentonite grout <br /> Clay 5 <br /> B <br /> 1 Descriptions for first 13 feet <br /> a per driller. <br /> ' n <br /> Sandy gravel k <br /> ' 10 4"schedule 40 PVC blank <br /> Sandy clay <br /> ' well casing. <br /> Start sampling at 13' <br /> ' Dark yellowish brown(IOYR 4/2)Silty CLAY(CL) 15 Constituent percentages are <br /> (80%clay, 15%silt,5%sand, 0%gravel)(80,15,5,0) visual field estimates only. <br /> ' micaceous,stiff,dry. <br /> 10 3/4 o.d.conductor casing <br /> 20 <br /> 25 First water <br /> ' Pale yellowish brown OOYR 6/2)fine-coarse SAND M. <br /> (SW)(0,0,100,0)wet, micaceous. <br /> Grades with iron oxide staining. <br /> 3 <br /> TRC Environmental Corporation Figure No. A-1 <br /> TRC <br />