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ARSONS ENGINEERING SCIENCE. Sheet 2 of 3 <br /> BORING NUMBER: MW-8 <br /> PROJECT NUMBER: 729801.14000 PROJECT NAME: <br /> CLIENT: BP Oil Company BP Oil Site Investigation <br /> LOCATION: Applied Aerospace Structures DRILLER: Gregg Drilling <br /> Stockton,California DRILLING METHOD: hollow-stem auger <br /> LOGGED BY. Patrick Johnston HOLE DIAMETER: 8" <br /> COMPLETION DATE: 6/1/98 TOTAL DEPTH: 65.5 feet <br /> z o <br /> O <br /> < <br /> G m o N p MONITORING WELL <br /> -t w E coo '� 3 = GEOLOGIC DESCRIPTION CONSTRUCTION <br /> p Q� <br /> 3 "'z t o <br /> V) Im m <br /> m w to <br /> 30 I �a <br /> 1 '7 £ I <br /> 35 j <br /> Clayey SILT,slightly moist,with white <br /> 40 ML nodules,7.5YR-5/6 <br /> 5 <br /> j 0.6 7 i Bentonite/ <br /> 11 SM SI.silty fine-grained SAND,wet,loose,5YR-3/2 — cement <br /> =i <br /> grout <br /> -{ I2 SM SAND,wet,silty,loose 7.5YR-4/3 <br /> 45 0.416 Sandy SILT,stiff,with golden mica Bentonite19 ML flakes IOYR-5/4 seal <br /> i <br /> i a <br /> #2/12 size <br /> sand <br /> 0.5 Z IyII, Very sandy SILT,with golden mica flakes, j <br /> 50 15 medium dense,v.damp to wet 2.5Y-5/3 2" ID i <br /> slotted <br /> PVC casing <br /> (0.020" slot <br /> size) <br /> 11 <br /> Sandy SILT,with golden mica flakes and <br /> 0.4 lq ML <br /> 55- 19 iron streaking,damp and stiff 5YR-4/6 �- <br /> - - - - - - - - - - - - - - - - - - - '--; <br /> g Silty SAND,with mica flakes,wet, --', <br /> 17 loose 5YR4/6 ' <br /> 60 1 3 25 SM (see next page) '— <br /> I <br /> First encountered groundwater. — - Contact location. - Shading indicates percent recovery in sampler. Ii <br /> t - Equilibrated groundwater level. ---- - Approximate contact location. NR - Not Recorded C - Drive sample. <br /> *Sample submitted for laboratory analysis Blow counts are of a 140 lb.hammer on a 2.5"outside diameter split spoon sampler. <br /> Bpmw8-cdr <br />