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FINAL REMEDIATION PLAN <br /> Shell Oki compatiy <br /> 620 West Charter Way,Stockton,C.alifornta <br /> Delta Project No 40-88 586 <br /> • Pale 9 <br /> TABLE 4 <br /> Waste Oil Tank, Sump, and Hoist Soil Samples <br /> Concentrations in milligrams per kilogram (equivalent to parts per million) <br /> Sample I D <br /> Waste <br /> Sum Oil Tank Hoist 1 Hoist 2 <br /> Depth below p_rade 125 10 75 75 <br /> Chemical Constituent <br /> TPHa 45 12 <10 14 <br /> TP1ib <10 <10 <10 <10 <br /> Benzene <0 05 <005 <005 <0 05 <br /> Toluene <01 <01 <01 <01 <br /> Ethylbenzene <01 <01 <01 <01 <br /> Xylenes 012 <01 <01 <01 <br /> Cadmium 22 23 21 33 <br /> Chromium 12 11 16 24 <br /> Lead 17 16 19 13 <br /> Zinc 51 63 48 64 <br /> Oil and Grease 89 <30 0 110 100 <br /> aTotal petroleum hydrocarbons in the low to medium boiling point range <br /> Total petroleum hydrocarbons in the high boiling point range <br />