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Revised Table 2. Summary of Groundwater Monitoring Data: Water Elevations and Analyses <br /> ARCO Facility 5450, Stockton, California <br /> Change <br /> Top-of-casing Depth-to- Product Water-level since last Concentrations in pg/l mg/L <br /> Well number elevation, water, thickness, elevation, measurement, Total <br /> and date in feet in feet in feet in feet in feet Benzene Toluene Ethylbenzene Xylenes TPH-G MTBE DO <br /> MW-1 <br /> 7/30/96 -- -- -- -- 0.54 <0.5 <0.5 <0.5 <50 35 -- <br /> 11/15/96 12.37 -- -- -- <0.5 <0.5 <0.5 <0.5 <50 8 <br /> 3/19197 8.89 -- -3.48. <0.5 <0.5 <0.5 <0.5 <50 19 0.26 <br /> Notes: Dash indicates of measured or calculated. <br /> TPH-G—Total Petroleum Hydrocarbons as Gasoline <br /> MTBE=Methyl Tertiary Butyl Ether <br /> DO=Dissolved Oxygen,field measurement. <br /> 48701TABLES15450MAR7.XLS <br />