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e <br /> Tate <br /> Groundwater Elevation and Analytical Data <br /> 76(Former BP)Service Station No 11193 <br /> 3202 W Hammer Lane,Stockton,California <br /> Well Data of PMP Well Depth to Groundwater Groundwater TPHg TPHd TPH B T E X MtBE VOCs(1] DO <br /> Number Sampling Elevation Water Elevation Elevation (ug1L) (ug1L) (ug/L) (ug1L) (ug/L) (ug/L) (ug1L) (ug/L) (ug1L) (ppm) <br /> (Feet) (Feet) (Feet) Change <br /> (Feet) <br /> QC-2 4/4/1993 — — -- --- ND<50 --- — ND<0 5 ND<0 5 ND<0 5 ND<0 5 — -- — <br /> 10/5/1993 — -- -- --- ND<50 --- — ND<0 5 ND<0 5 ND<0 5 ND<0 5 — --- — <br /> 1/7/1994 — — — — ND<50 — — ND<0 5 ND<0 5 ND<0 5 ND<0 5 --- — — <br /> 4/20/1994 — -- — --- ND<50 — --- ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — — <br /> 7M11994 --- — --- — ND<50 — — ND<0 5 ND<0 5 ND<6 5 ND<0 5 -- — — <br /> 12/9/1994 --- --- -- --- ND<50 --- -- ND<0 5 ND<0 5 ND<0 5 ND<1 --- — — <br /> 3/3/1995 --- --- --- --- ND<50 — --- ND<0 50 ND<0 50 ND<0 50 ND<1 0 - — -- <br /> 4/17/1995 -- — — — ND<50 — — ND<0 50 ND<0 50 ND<0 50 ND<1 0 — --- -- <br /> 7/20/1995 — — — — ND<50 — — ND<0 50 ND<0 50 ND<O 50 ND<1 0 — --- -- <br /> 11/2/1995 --- --- --- --- ND<50 — --- ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<5 0 --- — <br /> 1/16/1996 — --- — — ND<50 --- --- ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<5 0 --- — <br /> 4/22/1996 — — — — ND<50 --- --- ND<0 5 ND<1 ND<1 ND<1 ND<10 — — <br /> 7/12/1996 --- — — -- ND<50 — -- ND<0 5 ND<1 ND<1 ND<1 ND<10 -- — <br /> Notes <br /> [i] Volatile organic compounds(VOCs)(EPA 8260B),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 headspaee in VOA vial <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 laboratorys gasoline standard <br /> P/NP Purge/No Purge <br /> — Not measuredtanalyzed/applicable <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 ConocoPhillipslTosco Markebng1111931Tables1111931 QMR04 xis Page 12 of 12 <br />