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DISCUSSION <br /> . See attached tables for historical data For the second consecutive quarterly sampling event, concentrations of <br /> petroleum hydrocarbons m wells E-2, E-9, E-10, and E-11 are either non-detect or are significantly lower than <br /> previous sampling events Appendix A contains the Operations and Maintenance (O&M)report for the remediation <br /> system <br /> ATTACHMENTS <br /> Figure 1 Groundwater Elevation Map <br /> Figure 2 Constituent Concentration Map <br /> Table 1 Summary of Groundwater Monitoring Data Water Elevations and Analyses <br /> Table 2 Historical Flow Directions and Gradients <br /> Appendix A O&M Report <br /> Appendix B Field Data Sheets,Laboratory Reports, and Chain-of-Custody Documentation <br /> Use or disclosure of data continued on this sheet is subject to the restriction specified at the beginning of this document <br /> 47571REP0RTS12ND97QTR DOC <br />