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S Ec0R <br />Fourth Quarter 2002, Quarterly Progress Report <br />January 14, 2003 <br />Page i <br />TABLE OF CONTENTS <br />1.0 Groundwater Monitoring and Sampling...................................................................................... 1 <br />1.1 Introduction.............................................................................................................................. 1 <br />1.2 Groundwater Monitoring and Sampling...................................................................................1 <br />1.3 Monitoring Well Gauge Data....................................................................................................1 <br />1.4 Sample Analytical Results....................................................................................................... 1 <br />2.0 Evaluation of Groundwater Extraction and Soil Vapor Extraction Systems <br />2.1 Introduction.............................................................................................................................. 2 <br />2.2 Groundwater Extraction System.............................................................................................. 2 <br />2.3 Soil Vapor Extraction System.................................................................................................. 3 <br />2.4 Hydrocarbon Mass Estimate....................................................................................................3 <br />2.4.1 Estimated Mass of Petroleum Hydrocarbons Dissolved in Groundwater ..................... 3 <br />2.4.2 Estimated Mass of Petroleum Hydrocarbons Adsorbed in Soil .................................... 3 <br />3.0 Summary and Conclusions........................................................................................................ 4 <br />4.0 Recommendations..................................................................................................................... 4 <br />LIST OF TABLES <br />Table 1 _ Groundwater Gauging Data <br />Table 2 Groundwater Analytical Results <br />_ Table 3 - Groundwater Extraction System Analytical Data <br />Table 4 - Groundwater Extraction System Performance Data <br />LIST OF FIGURES <br />Figure 1 <br />- Site Location Map <br />Figure 2 <br />- A -Zone Groundwater Elevation Contour Map, October 28 & 29, 2002 <br />Figure 3 <br />- B -Zone Groundwater Elevation Contour Map, October 28 & 29, 2002 <br />Figure 4 <br />- A -Zone MtBE Isoconcentration Contour Map, October 28 & 29, 2002 <br />Figure 5 <br />- Remediation System Site Plan <br />Figure 6 <br />- Cumulative Groundwater Extraction Constituent Mass Removal <br />Figure 7 <br />- Groundwater Extraction Influent Constituent Concentrations <br />LIST OF APPENDICIES <br />Appendix A - Cleanup and Abatement Order No. 5-00-704, Dated April 20, 2000 <br />Appendix B - Monitoring and Sampling Analytical and Chain -of -Custody Documentation <br />Appendix C - Monitoring and Sampling Field Data Sheets and Field and <br />Laboratory Procedures <br />Appendix D - Operation and Maintenance Analytical and Chain -of -Custody Documentation <br />Appendix E - Operation and Maintenance Field Data Sheets <br />Appendix F - Regional Water Quality Control Board Letter, Dated September 10, 2002 <br />