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Mw <br /> Ir. <br /> . x , <br /> R! QRIM <br /> w <br /> ,fw-ti <br /> r <br /> LIST OF TABLES <br /> Number Pape <br /> 2-1 Summary of Monitoring Well and Vapor WeII Constructions . . . . . 2-3 <br /> 4-1 Analytical Results for Soil Samples Taken During Monitoring <br /> Well and Vapor Well Installation During April 16, 1990 through <br /> May 4, 1990, Lodi, California . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 <br /> 4-2 Analytical Results--Groundwater Samples,April 1987 through <br /> Japuszry 1994, ARCO Station 434,Lodi, C_'.ifornia . . . . . . . . . . . 4-6 <br /> 4-3 Fecal Coliform Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 <br /> f <br /> i <br /> s. LLST OF FIGURES <br /> ' Number Pape <br /> 1-1 Location of ARCO Service Station 434 and Lodi <br /> Municipal Wells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 <br /> 1-2 On-Site and Off-Site Monitoring Well Ixcations . . . . . . . . . . . . . 1-3 <br /> { 2-1 Monitoring Wells, Vapor Wells, and Extraction Well Locations . . . 2-2 <br /> _. 2-2 Site Map of Vapor Extraction System at ARCO Station 434, <br /> ' Lodi, California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 <br /> 3-1 Location of Cross Section A-A' and Cross Section B-B' . . . . . . . . 3-2* <br /> 3-2 Cross Section A-A', Arco Station 434,Lodi, California . . . . . . . . . 3-4 <br /> 3-3 Cross Section B-B', ARCO Station 434, Lodi, California . . . . . . . 3-5 <br /> 3-4 Benzene Concentrations and Groundwater Contours, May 1990, <br /> f ARCO Station 434, Lodi, California . . . . . . . . . . . . . . . . . . . . . . 3-5* <br /> 3-5 W-2 Response to E-1 Step-Drawdown Test, ARCO Station 434, <br /> Lodi, California . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 3-8 <br /> 3-6 Extraction Well E-1 Response to Step-Drawdown Test and ' <br /> Recovery, ARCO Station 434,Lodi, California . . .. . . . . . . . . . . 3-9 <br /> 5-1 Water Level Elevation and Xylene Concentration Versus Time 5-2 <br /> _ *Figure (fold-out) is behind the page noted. <br /> 1 <br /> i <br /> t 4. <br /> i <br />