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TABLE 6 Page 2 of 2 <br /> HISTORICAL SOIL VAPOR ANALYTICAL DATA <br /> SHELL STOCKTON TERMINAL <br /> 3515 NAVY DRIVE,STOCKTON,CALIFORNIA <br /> Carbon Carbon Oxygen <br /> Sample ID Date Depth TPHg B T E X MTBE TBA Naphthalene Isopropanol oxygen Methane Dioxide Monoxide +Argon Nitrogen <br /> Ybg) (PFIrn 3) (PP/M3) (Pg1m 3) oion 3) (PgIM 3) (Pg(m 3) (PS/"13) (Pg/m 3) (Pg1M 3) NO) (%v) (%v) (%o) NOW NOW <br /> V-6-9' 3/11/2008 6 9,400,000 <960 1,200 4,100 6,600 <4,300 5,500 <7,900 <1,500 - 4.24 15.8 <0.750 1.51 78.4 <br /> V-8-6' 1/18/2008 6 25,000,000 150,000 4,600 8,700 <11,200 <12,000 <10,000 <23,000 8,600 - <0.860 12.6 <0.860 6.42 80.6 <br /> V-10-6' 1/18/2008 6 43,000 <2.6 5.5 <3.6 <10.7 <12 <9.9 <21 <4.0 - <0.820 2.70 <0.820 16.2 81.1 <br /> Ambient Au V-1 1/18/2008 NA <17,000 <2A 4.2 <3.3 <9.9 <11 <9.2 <20 9.0 - <0.760 <0.760 <0.760 22.1 77.9 <br /> Ambient Air V-2 1/18/2008 NA <17,000 2.4 9.0 <3.3 <9.8 <11 <9.1 <20 13 - <0.750 <0.750 <0.750 22.1 77.9 <br /> Ambient Air V-4 1/18/2008 NA <18,000 <2.5 <2.9. <3.3 <10.0 <11 <9.3 <20 4.0 - <0.770 <0.770 <0.770 22.0 78.0 <br /> Ambient Air V-5 3/11/2008 NA 45,000 <2.3 <2.7 G3.1 <9A <10 <8.7 <19 <3.5 - <0.720 <0.720 <0.720 220 77.9 <br /> Ambient Air V-6 3/11/2008 NA 25,000 <2.3 <2.7 <3.1 <9.3 <10 <8.6 <19 <3.5 - <0.710 <0.710 <0.710 221 77.9 <br /> Ambient Air V-8 1/18/2008 NA <16,000 <2.2 3.3 <3.0 <8.9 <9.9 <8.3 <18 5.5 - <0.685 <0.685 <0.685 22.0 78.0 <br /> Ambient Air V-10 1/18/2008 NA 39,000 <2.6 3.6 <3.5 <10.5 <12 <9.8 <21 9.2 - <0.810 <0.810 <0.810 22.0 78.0 <br /> Notes: <br /> TPHg=Total petroleum hydrocarbons as gasoline analyzed by Modified EPA Method TO-3 GC/FID;before January 18,2008,analytical method unknown. <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes analyzed by Modified EPA Method TO-15;before January 18,2008,analytical method unknown. <br /> MTBE=Methyl tertiary-butyl ether analyzed by EPA Method TO-15 <br /> TBA=Tertiary-butyl alcohol analyzed by EPA Method TO-15 <br /> Naphthalene and isopropanol analyzed by EPA Method TO-15 <br /> Oxygen analyzed by unknown method <br /> Methane,carbon monoxide,nitrogen,and oxygen+argon analyzed by EPA Method ASTM D-1946 <br /> Carbon dioxide analyzed by EPA Method AS I'M D-1946;before January 18,2008,analytical method unknown. <br /> fbg=Feet below grade <br /> pg/m3=Micrograms per cubic meter <br /> %v=Percent by volume <br /> unk=Unknown <br /> -=Not analyzed or available <br /> ND=Not detected,laboratory reporting limit unknown <br /> NA=Not applicable <br /> <x=Not detected at reporting limit x <br /> CRA 141rMM) <br />