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Date July 30,2003 <br /> Quarter 2"d Quarter,2003 <br /> • • The elevated reporting litmts reported in the Method 8260B analysis of sample MW-4 were due to presence <br /> of TPHg in these samples <br /> • The elevated reporting limits were the result of dilutions performed by the laboratory in order to quantitate <br /> a target analyte(s) <br /> DISCUSSION: <br /> TPHg,benzene,total xylene, and MtBE, were reported in groundwater samples collected from site wells during this <br /> quarterly groundwater monitoring event Additionally, volatile organic compounds acetone, isopropyl benzene, n- <br /> propyl benzene, tetrachloroethene (PCE), cis-1,2 dichloroethene, and trichloroethene (TCE) were reported in <br /> samples collected from site wells Analyte concentrations were generally consistent with previous quarterly <br /> monitoring events Groundwater elevations in the site wells generally decreased relative to the previous quarter <br /> The inferred groundwater flow direction and gradient were consistent with previous quarters <br /> This report is based on data, site conditions, and other information that are generally applicable as of the date of the <br /> report,and the conclusions and recommendations herein are therefore applicable only to that time frame <br /> TABLES <br /> Table 1 Groundwater Elevation and Analytical Data <br /> Table 2 Fuel Oxygenates Analytical Data <br /> Table 3 Detected Volatile Organic Compounds Analytical Data <br /> Table 4 Groundwater Gradient Data <br /> ,1 FIGURES <br /> Figure l Groundwater Elevation Contours <br /> Figure 2 Groundwater Analytical Summary <br /> APPENDICES <br /> Appendix A Field and Laboratory Procedures <br /> Appendix B Laboratory Analytical Reports,Chain-of-Custody Documentation, and Field Data Sheets <br /> i <br /> K\WPMccssV5 BP ARC0\0"93\Quaner1yl2 QTR 03\4493 GWMR 2Q03 Joc Page 2 <br />