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0 <br /> • .; 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 MA) (µg/L) (µg/L) (PPL) (µg/L) (gg/L) (ug/L) <br /> MW-12 L 05/18/01 5038 -3271 <50 <0 50 1 7 <0 5 181 <0 50 <br /> 11/05/01 4795 -3028 NA NA NA NA NA NA <br /> 02/14/02 4678 -29 11 <50 <0 50 17 <0 50 <0 50 <0 50 <br /> 05/20/02 55 80 -38 13 <50 <0 50 058 <0 50 <0 50 <0 50 <br /> 08/27/02 5292 -3525 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> 12/05/02 5165 -3398 <50 <0 50 33 066 43 076 <br /> 02/05/03 5160 -3393 <50 <0 50 <0 50 <0 50 <0 50 0 76 <br /> NOTES <br /> *=Reporting limits were increased due to high concentrations of target analytes <br /> **=Wcll MW-3 is obstructed at approximately 23 feet bgs <br /> *** <br /> =Well was previously identified as MW-1 All groundwater samples have been collected from well VEW-2 <br /> ****=Reporting limits increased due to sample foaming <br /> TPHG=Total petroleum hydrocarbons as gasoline <br /> MTBE=Methyl tertiary butyl ether <br /> U=Upper water bearing zone(wells screened from 46 5 to 70 feet bgs) <br /> L=Lower water bearing zone(wells screened from 94 to 115 feet bgs) <br /> NA=Not Analyzed <br /> NM=Well casing elevation has not been surveyed <br /> µg/L= micrograms per liter <br /> Historical monitoring and sampling data prior to May 18,2001,was submitted by previous consultants Copies of available <br /> tables summarizing this data are included in Stratus'Site Conceptual Model (Appendix B),dated September 24,2002 <br /> Apache_Quarterly Data Page 4 of 4 STRATUS <br />