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Page 34 of 34 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> l II ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,CA <br /> Well Depth Productp Groundwater Groundwater Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPI-Ig Benzene Toluene Ethylbenzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) f(ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> TB-1 1215101 — — — — _(I _ <50 <0 50 <0 50 <0 50 <0 50 <2 5 — <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> MtBE=Methyl tart-butyl ether <br /> DO=Dissolved oxygen <br /> TB-1 =Trip Blank <br /> ft=feet <br /> MSL=mean sea level <br /> TOC=top of casing <br /> ppb=parts per billion <br /> mg/L=milligrams per liter <br /> PMP=purgedinot purged <br /> <or ND=below given laboratory detection limit <br /> --=not measured or analyzed(in case of product thickness,none found) <br /> ^=groundwater elevation corrected by adding 0 75 X product thickness <br /> "=Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel <br /> I <br /> i <br /> i <br /> I. <br /> Projects/ARCO/2133/ReportVrables/gwtables2133 As <br /> 0 1 i • <br />