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T* • <br /> Groundwater Elevation and Analytical Data <br /> ConocoPhillips (Former BP) Station No 11193 <br /> 3202 W Hammer Lane, Stockton, California <br /> I <br /> Well Date at P/NP Well Depth to Groundwater Groundwater TPH-G TPH-D TPH B T E X MtBE VOCs[l] DO <br /> Number Sampling Elevation W ater Elevation Elevation (ug/L) (uglL) (uglL) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ppm) <br /> (Feet) (Feet) (Feet) Change <br /> (Feet) <br /> QC-2 4/4193 --- --- --- --- ND<50 --- ND<0 5 ND<0 5 ND<0 5 ND<0 5 --- -- -- <br /> 1015/93 --- --- --- ND<50 --- --- ND<O 5 ND<0 5 ND<0 5 ND<0 5 --- <br /> 717194 --- --- --- ND<50 --- - ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 4120194 --- --- --- ND<50 --- --- ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 7128/94 --- --- --- --- ND<50 --- --- ND<0 5 ND<0 5 ND<0 5 ND<0 5 --- <br /> 1219/94 --- --- --- ND<50 --- --- ND<d 5 ND<0 5 ND<0 5 ND<l --- <br /> 313195 --- --- --- ND<50 --- --- ND<0 50 ND<0 50 ND<0 50 ND<l 0 --- <br /> 4/12/95 -- --- ND<50 --- --- ND<0 50 ND<0 50 ND<0 50 ND<1 0 --- --- --- <br /> 7120195 --- --- --- --- ND<50 --- ND<0 50 ND<0 50 ND<0 50 ND<l 0 --- --- --- <br /> 11/2/95 --- --- ND<50 --- ND<0 5 ND<0 5 ND<0 5 ND<l 0 ND<5 0 --- --- <br /> 1/16/96 --- --- --- --- ND<50 --- --- ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<5 0 --- --- <br /> 4/22/96 --- ND<50 --- --- ND<0 5 ND<1 ND<l ND<1 ND<10 --- --- <br /> 7/12/96 --- --- --- --- ND<50 --- --- ND<0 5 ND<l ND<l ND<1 ND<10 --- --- <br /> Notes <br /> [i] Volatile organic compounds(VOCs)(EPA 82606),not inlcuding BTEX and oxygenates <br /> [2] Halogenated volatile organic compounds only <br /> [3] Analysis conducted in excess of EPA recommended hold time,results should be considered biased low <br /> [4] Lab reports significant headspace in VOA ural <br /> Analysis conducted in excess of EPA recommended hold time,results should be considered biased low <br /> [5] Napthalene <br /> [6] Discrete Peak @ MtBE <br /> ['7] Hydrocarbon reported in the gasoline range does not match the laboratory's gasoline standard <br /> PINP Purge/No Purge <br /> --- Not measured/analyzedlapplicable <br /> B Benzene <br /> DO Dissolved oxygen <br /> E Ethylbenzene <br /> VOC Halogenated volatile organic compounds <br /> MtBE Methyl tert butyl ether <br /> ND Not detected above reported detection limit <br /> ppm Parts per million <br /> T Toluene <br /> TPH-D Total petroleum hydrocarbons as diesel <br /> TPH-G Total petroleum hydrocarbons as gasoline <br /> ug/L Micrograms per liter <br /> X Total xylenes <br /> I IConocoPhdlips`Tosco Marketing1111931Tables111193 4QMR03 xis Page 12 of 12 <br />