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affin, <br /> El <br /> _ � �»-,rM'Ya J� 7js9 � '`' 3 a' '" -Y' Y�, .,P yrY}'Wf"3" i-, -�N*:. ;s " ji`� <br /> n� <br /> I <br /> 1 cbruar� 19, 1991 I <br /> l..�'aluat'son of Soil ansd (round IG, s AGS 38032-3 <br /> 81, Stockton, Cakifarlti:t <br /> Unocal Station No. 69 <br /> for total petroleum hydrocarbons as <br /> i'he soil samples from the five borings were analyzed <br /> �asol <br /> ine ('[,Pl-!g) using LPA modified \lethod 8019 with EPA extraction \lcthod 3030 and <br /> 20. <br /> benzene, toluene, ctltylbenze[tc, and total \ylcne <br /> isomers (I3TEX) using EPA Method 50 <br /> The analvses were performed at the Applied :\nahticll Environrrlerttal Laboratories in <br /> I <br /> l rentor[[, California (l Iazardous 1\astc "l'csting LaboratoCopies of the Chain <br /> ry No. 1211)• <br /> �+ of Custod}' Records anti �\Iralytical Reports for the soil santplcs arc in Appendr.� V. 1� <br /> The ground-water sample coliectec€ tirom tnottltorin <br /> e «ells :\IW-1 t trough \l\i' � were <br /> altal)'zcd b}' Applied Analytical Llt�ironnten,al Laboratories for TPH9 usutg Ittod"icct\letltod <br /> 801 and f3"1'Lr using EPA P:\ ,Method 602. The ground-water samples collected front <br /> ` ��ells1. \111'-_. \1 V-3. and MW-1 «'ere submitted to I=GL of Stockton, <br /> [1101111orrlig <br /> California (Hazardous Waste Testing Laboratory No. 112). for nitrate analysis using LPA <br /> \letitod 315 and fecal anti total eolifornt bacteria using "Standard \lethods" 15th Edition, <br /> American Public Health Association. Copies of lite C11ain of Custody Records and Analytical <br /> Reports for the ground-%vater samples are in Apperldi\ D. <br /> W2 ANA1.,YTICAL RESULTS <br /> boring <br /> "l'he results of laboratory analyses of the soil samples collected�TEXlcompoun�s were`tbelow <br /> nd 45 <br /> a* feet below oracle) indicated the concentrations of TPHg <br /> xcept for 0.13 parts per million (ppm) of toluene <br /> the detection limits for the test used e <br /> detected in the sample from 25 feet below grade (Table 2). PID readings were 0 parts per <br /> rp <br /> million by volume (pprnv) for these two samples (Table 10. <br /> I <br /> 9 <br /> Loviieaf aeosystems <br />