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• 3of3 <br /> Table 3 <br /> Groundwater Elevation and Analytical data <br /> Former ARCO Service Station#4932 <br /> 16 E Harding Way,Stockton CA <br /> Well Depth Groundwater SPH Groundwater Ethyl- Xylenes MtBE <br /> Well Date Elevation to Water Elevation Thickness Elevation TPHg Benzene Toluene benzene (total) (8020/8260) DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft,MSL) (ft) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> EW-1 4/11/02 P 1183 2795 -1612 0 00 -- <200,000 9,900 48,000 4,700 24,000 550,0001520,000 -- <br /> OCTB 4/11//02 — — — — — <50 <0 50 <0 50 <0 50 <0 50 <2 5 -- <br /> Notes <br /> TPI-Ig=Total petroleum hydrocarbons as gasoline ppb=parts per billion <br /> MtBE=Methyl tertiary butyl ether mg/L=milligrams per liter <br /> DO=Dissolved oxygen PMP=purgedlnot purged <br /> SPH=Separate phase hydrocarbons 8020=analyzed by EPA Method 8020 <br /> ft=feet 8260=analyzed by EPA Method 8260 <br /> MSL=mean sea level <=below given laboratory detection limit <br /> TOC=top of casing <br /> =analyzed using EPA Method 8260 <br /> ` =Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel <br /> =groundwater elevation corrected by adding 0 77 X product thickness <br /> not measured or analyzed <br /> Project/ARCO/4932/Reporls/Tables/gwtables4932 <br />