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• TOLE 1 <br /> Groundwater Monitoring Data <br /> ARCO Service Station No 2186 <br /> 3212 North California Street, Stockton, California <br /> Elevation of Static Water[l] Screen Elevation of Total <br /> Well Top of Casing Level Interval Groundwater Groundwater TPHg Benzene Toluene Ethylbenzene Xylenes MtBE[3) <br /> Sample No Date (feet msl) (feet b s) (feet b s) (feet msl) Flow Direction ppb <br /> b b <br /> Notes (Cont) b ppb ppb Observations <br /> [2]Measured from ground surface FP=Free product Measured in feet <br /> (3)MtBE was analyzed using USEPA Method 8020 S=Sheen <br /> [4]MtBE was analyzed using USEPA Method 8260 NM=Not rneasured <br /> [5]Chromatogram Pattem Weathered Gasoline C6 C 12 NA=Not analyzed <br /> ]6]Sample analyzed outside USEPA recommended hold tame NS=Not sampled <br /> [7]Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel <br /> [8]On the chain-0f-custody forms samples were identified as MW-1B,MW-2B,and MW-3B,respectively <br /> I <br /> K U5 BP ARCOw2 W%Qu=eriyk3_QTa 0Z2186 cwM R 3Qo2 <br />