ARCHIVED REPORTS_SOIL MANAGEMENT PLAN AND EXCAVATION WORK PLAN

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TABLE 1 Page 12 of 12 SOIL ANALYTICAL DATA FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES CORDESRANCH TRACY,CALIFORNIA Depth TPHc(') BT E X MTBE Sample Location: (ftbgs) Sample Date: mg/kg ingAg ingf8 1ng/k8 ingft fugft 25 11/14/2011 <25 UI <0.00099 <0.00099 <0.00099 <0.0020 - 30 11/14/2011 <25 UJ <0.00099 <0.00099 <0.00099 <0.0020 - 35 11/14/2011 <25 UI <0.0010 <0.0010 <0.0010 <0.0020 - 5 11/14/2011 <25 UI <0.00099 <0.00099 <0.00099 <0.0020 - B-114 10 11/14/2011 zoo <0.0010 <0.0010 <0.0010 <0.0020 - 5 11/15/2011 9200 <0.0010 <0.0010 UI <0.0010 q <0.0020 UJ - 10 11/15/2011 27000 <0.0052 <0.0052 <0.0052 <0.010 - 15 11/15/2011 48000 <0.0051 <0.0051 <0.0051 <0.010 - B-115 20 11/15/2011 8800 <0.0026 <0.0026 <0.0026 <0.0051 - 25 11/15/2011 170 <0.0010 <0.0010 <0.0010 <0.0020 - 30 11/15/2011 <25 <0.00099 <0.00099 <0.00099 <0.0020 - 35 11/15/2011 <25 <0.00099 <0.00099 <0.00099 <0.0020 - 5 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 10 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 15 11/15/2011 <25 <0.00098 <0.00098 <0.00098 <0.0020 - B-115A 20 11/15/2011 <25 <0.0010 <0.0010 <0.0030 <0.0020 - 25 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 30 11/15/2011 <25 <0.00099 <0.00099 <0.00099 <0.0020 - 35 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 5 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 10 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 15 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - B-115B 20 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 25 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 30 11/15/2011 <25 <0.00099 <0.00099 <0.00099 <0.0020 - 35 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - 5 11/15/2011 <25 <0.0010 <0.0010 <0.0010 <0.0020 - B-116 10 11/15/2011 <zs <o.00lo <0.0010 <0.0010 <o.00zo - Notes and Abbreviations: TPHc=Total petroleum hydrocarbons as crude oil analyzed by EPA Method 80158(C6-C44) (1)TPHc results for samples from boring locations B-1 to B-42 were calculated from the analytical BTEX=Benzene,toluene,ethylbenzene,xylenes by EPA Method 8260B. ft bgs-feet below ground surface mg/kg=milligrams per kilogram <n=Below detection limit NA=Not applicable -=Not analyzed •=extracted outside recommended holding time Results shown in italics considered saturated soil samples(>35 ft bgs) CRA060223(33)