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Date December 16,2002 <br /> Quarter 3`d Quarter,2002 <br /> DISCUSSION: <br /> Constituents detected in site wells this quarter included TPHg,BTEX,and methyl tert—butyl ether(MtBF) Chemical <br /> concentrations were similar to those reported in previous quarters The approximate direction of groundwater flow <br /> was to the northeast with an average gradient of 0 001 ft/ft <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 /> Background information, including but not limited to previous field measurements,analytical results, site plans, and <br /> other data has been furnished to URS by Atlantic Richfield Company, its previous consultants, and/or third parties <br /> that URS has used in preparing this report URS has relied on this information as furnished URS is not responsible <br /> for nor has it confirmed the accuracy of this information <br /> Field measurements have been supplied by a groundwater sampling subcontractor URS has not performed an <br /> independent review of the field sampling data and is neither responsible for nor has confirmed the accuracy of these <br /> data <br /> TABLES <br /> Table 1 Groundwater Monitoring Data <br /> Table 2 Groundwater Analytical Results For Oxygenates <br /> FIGURES <br /> Figure 1 Groundwater Elevation Contours <br /> Figure 2 Groundwater Analytical Summary <br /> APPENDICES <br /> Appendix A Field and Laboratory Procedures <br /> Appendix B Laboratory Analytical Reports,Cham-of-Custody Documentation,and Field Data Sheets <br /> K 115 BP ARC01021301Qumer1yl3_QTR 02\2130GWMRIQ02 dnt Page 2 <br />