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Nestle USA, Inc., Ripon, California August 11, 2009 <br /> Second Quarter 2009 Site Status Report <br /> Table of Contents <br /> 1 Introduction.............................................................................................................. 1 <br /> 2 Site Hydrogeology.................................................................................................... 1 <br /> 3 Field Activities..........................................................................................................2 <br /> 3.1 Groundwater Monitoring ...................................................................................3 <br /> 3.1.1 Groundwater Elevation Measurements......................................................3 <br /> 3.1.2 Groundwater Sample Collection ................................................................3 <br /> 3.1.3 Deviations from the MRP...........................................................................4 <br /> 3.2 Extraction and Treatment systems Operation and Maintenance .......................5 <br /> 4 Results and Discussion of Field Activities Performed...............................................6 <br /> 4.1 Water Level Monitoring .....................................................................................6 <br /> 4.2 Water Quality Monitoring...................................................................................8 <br /> 4.3 On-Site Extraction and Treatment System and IRAP........................................9 <br /> 4.4 Off-Site Extraction and Treatment System...................................................... 10 <br /> 4.5 Private Wellhead Treatment Systems............................................................. 10 <br /> 5 Conclusions........................................................................................................... 11 <br /> 6 Recommendations................................................................................................. 12 <br /> Figures <br /> Figure 1: Site Location Map <br /> Figure 2: Well Location Map <br /> Figure 3: Groundwater Elevation Map (Upper Aquifer) <br /> Figure 4: Groundwater Elevation Map (Intermediate Aquifer) <br /> Figure 5: Groundwater Elevation Map (Lower Aquifer) <br /> Figure 6: TCE Concentrations in Upper Aquifer, April 2009 <br /> Figure 7: Cis-1,2-DCE Concentrations in Upper Aquifer, April 2009 <br /> Figure 8: Vinyl Chloride Concentrations in Upper Aquifer, April 2009 <br /> Figure 9: TCE Concentrations in Intermediate Aquifer, April 2009 <br /> Figure 10: Cis-1,2-DCE Concentrations in Intermediate Aquifer, April 2009 <br /> Figure 11: Vinyl Chloride Concentrations in Intermediate Aquifer, April 2009 <br /> Figure 12: TCE Concentrations in Lower Aquifer, April 2009 <br /> Figure 13: Cis-1,2-DCE Concentrations in Lower Aquifer, April 2009 <br /> Figure 14: Vinyl Chloride Concentrations in Lower Aquifer, April 2009 <br /> Figure 15: On-Site Extraction and Treatment System Well TCE Concentrations <br /> Figure 16: Pumping Rates at Well E-6 - Off-Site Extraction and Treatment System <br /> Tables <br /> Table 1: Well Information <br /> Table 2: Water Level Summary <br /> i <br />