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' Updated Site Conceptual Model and Third Quarter 2003 Monitoring and Remediation Report <br /> Cleanup and Abatement Order No 5-00-707 EAI Project No I232 <br /> TABLE OF CONTENTS <br />' Page <br /> 1.0 INTRODUCTION................................................................................................. 1 <br /> 11 Background 1 <br /> 1 1 1 Wards Site 1 <br /> 1 12 Wards Site Redevelopment 1 <br /> 1 1 3 Unocal Site 1 <br /> 1 14 Robinhood irrigation Well (RTW) 2 <br /> 1 1 5 Cleanup and Abatement Order 3 <br /> 2.0 SITE CONCEPTUAL MODEL UPDATE.......................................................... 4 <br /> 3.0 GROUND WATER MONITORING................................................................... 5 <br /> 3 1 Ground Water Sampling 5 <br /> 32 Effluent Handling 5 <br />' 33 Analytical Testing 5 <br /> 4.0 REMEDIATION SYSTEM STATUS REPORT ................................................ 6 <br /> 5.0 DISCUSSION........................................................................................................ 7 <br /> 5 1 Ground Water Elevation Contour Maps 7 <br /> 52 Ground Water Flow Direction and Magnitude 7 <br /> 53 Monitoring Well Hydrographs 7 <br /> 54 TPH-G and Benzene Tsoconcentration Maps 7 <br /> 5 5 Analytical Testing Results 8 <br /> 5 5 1 Units A and B Wells g <br /> 5 5 2 Units C and D Wells (MW-8D, MW-23S/D and MW-24S/D) 8 <br />' 5 5 3 Perimeter Wells g <br /> 5 5 4 Cross Sections A-A' and B-B' 8 <br />' 6.0 RECOMMENDATIONS...................................................................................... 9 <br /> 7.0 LIMITATION................................................... ................................................... 10 <br /> 1 <br /> i <br /> 1 <br /> BHM 1232RO351 -i- <br />