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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Halt Drive <br /> Stockton California <br /> Well Depth Product Groundwater Groundwater Ethyl- Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled A MSL) A TOC) (ft) A MSL) Change(ft) (ugA) (ugA) (ugA) (ugA) (ugA) (ugA) (mgA_) <br /> Notes <br /> ft=feet TPHg=Total petroleum hydrocarbons as gasoline <br /> MSL=mean sea level M1BE=Methyl tert butyl ether <br /> TOC=top of casing DO=Dissolved oxygen <br /> ugA=Micrograms per liter QCTB=Trip Blank <br /> mgA_=milligrams per liter <br /> PIN =purged(not purged <br /> <=below given laboratory detection limit <br /> =not measured or analyzed(in case of product thickness none found) <br /> A=groundwater elevation corrected by adding 0 75 X product thickness <br /> =Chromatogram Pattern Gasoline c6 cl0 <br /> =Hydrocarbon pattern is present in the requested fuel quantdabon range but does not resemble the pattern of the requested fuel <br /> a=sample was analyzed using EPA Method 13260 <br /> b=Laboratory reports that this sample may be biased high due to carryover from the provious sample <br /> I <br /> i <br /> 11ProlectsVARCO121331Tableslgwtables2133 Page 36 of 36 <br />