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e <br /> Oble 1 Palef 2 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station 4434 <br /> 501 West Kettleman Lane,Lodi,CA <br /> i <br /> Well Depth Groundwater Groundwater Ethyl <br /> Well Date Elevation to Water Elevation Elevation TPH-G Benzene Toluene benzene Xylenes MTBE DO O&G <br /> Name Sampled (feet,MSL) (feet TOC) (feet,MSL) Change(feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (rng11) (mg/1) <br /> TOC =Top of Casing <br /> MSL =Mean Sea Level <br /> TPH-G =Total Petroleum Hydrocarbons as Gasoline by EPA Method 8015,Modified <br /> O&G =Oil and Grease determined by EPA Method 4181 <br /> =MTBE(Methyl Tertiary Butyl Ether by EPA Method 8260) <br /> P/NP =Well purged/not purged prior to sample coilectron <br /> < =Below detection limits <br /> ppb =parts per billion <br /> D O =Dissolved Oxygen <br /> mg/l =milligrams per liter <br /> 1 =Sample analyzed for Total Lead(EPA 6010)and chlorinated hydrocarbons(EPA 624) All were reported as nondetect <br /> =Not measured <br />