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Ms Lori Duncan Project No 120221 03000000 <br /> September 27, 2006 <br /> Page 4 <br /> CONCLUSIONS <br /> Analytical results for groundwater samples collected from the site were generally consistent with <br /> previous sampling events Measured groundwater elevations decreased between 0 44 and <br /> ' 0 80 feet from the May 8, 2006 sampling event The measured groundwater elevation in well <br /> VW-3D decreased 5 46 feet from the February 6, 2006 sampling event The groundwater <br /> ' elevations during the second quarter of 2006 indicated an overall southeastern direction of flow <br /> that was generally consistent with that observed at nearby sites <br /> No indications of free petroleum product or sheen were present in any of the wells or <br /> groundwater samples Graphs showing TPHg and benzene concentrations and groundwater <br /> elevations versus time in wells MW-IR and VW-21) are presented in Appendix D A graph for <br /> well VW-3D is typically presented in Appendix D, as well However, well VW-3 was blocked <br /> during tins third quarter sampling event and a graph for well VW-3 is not presented in Appendix <br /> D of this report <br /> Analyte concentrations in samples from well MW-IR have rebounded since system shut-off in <br /> 2004 (Appendix D) <br /> Shaw will continue to perform quarterly groundwater sampling The next sampling event is <br /> tentatively scheduled for November 2006 <br /> �? f <br /> ' N 1TechPW120221 Don Rod9 ers\Rptsl8frQ900MDRAFf doc SHAW ENVIRONMENTAL,INC <br />