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TABLE D Soil Stockpile Sampling Summary Chevron Service Station No 9-4183 236 North Ham Lane, Lodi, California Results in mg/Kg-parts per million (ppm) UST and Piping Excavation Soil Stockpile Sampling Results i Sample ID laboratory Date TPN-Gasoline Benzene Toluene Ethylbenzene Xylenes Lead SP-1(A-D) Sequoia 16-Apr-96 34 NO NO ND 030 58 SP-2(A-D) Sequoia 16-Apr-96 NO NO NO NO NO 51 SP-3(A-D) Sequoia 16-Apr-96 77 NO NO NO 001 NO SP-4(A-D) Sequoia 16-Apr-96 NO NO NO NO NO 79 SP-5(A-0) Sequoia 16-Apr-96 94 NO 001 002 028 7 1 Used-oil Tank Soil Stockpile Sampling Results Sample ID Laboratory Date Cadmium Chromium Lead Nickel Zinc TRPH 8240(2) 8270131 UOSP-1(A-D)' Sequoia 16-Apr-96 NO 99 21 76 41 25,000 CAR NO UOSP-2(A-D)' Sequoia 16-Apr-96 NO 96 48 69 65 24,000 CAR ND UOSP-3(A-D)' Sequoia 26-Apr-96 NO 83 NO 51 33 440 NO CAR UOSP-4(A-D)' Sequoia 26-Apr-96 NO 55 NO 30 21 3500 CAR CAR UOSP-5(A-D)' Sequoia 26-Apr-96 NO 64 NO 45 33 8200 CAR CAR I UOSP-6(A-D)' Sequoia 26-Apr-96 NO 77 57 51 37 3000 CAR ND Notes 1 Additional metal analyses reactivity,corossiwty,ignitabdity and Fish Bioassay results for used-oil sod stockpiles are presented in the Sequoia certified analytical report 2 Tetrachloroethene,Benzene Toluene,Ethylbenzene,and/or Xylenes were detected in 8240 analyses Analyte concentrations are reported in the Sequoia analytical report 3 Napthalene 2-Methylnapthalene and/or Bis(2-ethylhexyl)phthalate were detected in 8270 analyses Analyte concentrations are reported in the Sequoia analytical report TPH-Gasoline = Total Petroleum Hydrocarbons calculated as Gasoline 8270 = Semi-Volatile Organics TRPH=Total Recoverable Petroleum Hydrocarbons(EPA 418 1) CAR = See Sequoia certified analytical report for analytes detected 8240 = Volatile Organics NO = Not detected at or above laboratory detection limits 9-4183 Page 1