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TABLE 1 <br /> GROUNDWATER ELEVATION AND ANALYTICAL SUMMARY <br /> FORMER APACHE PLASTICS FACILITY <br /> 2050 EAST FREMONT STREET <br /> STOCKTON CALIFORNIA <br /> Depth to Well Groundwater Ethyl- Total <br /> Date Water Elevation Elevation TPHG Benzene Toluene benzene Xylenes MTBE <br /> WELL# Sampled (ft bgs) (ft msl) (ft msl) (µg/L) (µg/L) 61g/L) WIL) (µg/L) (pg/L) <br /> NOTES <br /> TPHG=Total petroleum hydrocarbons as gasoline msl=Mean Sea Level <br /> MTBE=Methyl tertiary butyl ether bgs=Below Ground Surface <br /> S=Shallow Wells(screened 40 to 70 feet bgs) }rg/L= micrograms per liter <br /> M=Mid-Depth Wells(screened 85 to 90 feet bgs) <br /> =Deep Wells(screened 94 to 120 feet bgs) <br /> A=Not Analyzed <br /> M=Not Measured or Well casing elevation has not been surveyed <br /> *=Reporting limits were increased due to high concentrations of target analytes <br /> **=Well MW-3 is obstructed at approximately 23 feet bgs <br /> *** <br /> =Well was previously identified as MW-I All groundwater samples have been collected from well VEW-2 <br /> ****=Reporting limits increased due to sample foaming <br /> [11 Confirmation analysis using VOA 2 of 5 <br /> Historical monitoring and sampling data prior to May I8,2001,was submitted by previous consultants Copies of available <br /> tables summaiizmg this data are included in Stratus'Site Conceptual Model (Appendix B) dated September 24,2002 <br /> Apache_Quarterly_Data Page 15 of 15 STRATUS <br />