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Ms. Margaret Lagorio <br /> Mr Ronald Rowe <br /> Table 1,Page 3 <br /> June 18, 1998 <br /> i <br /> Table I•Status of Del Monte Food's Responses to October 14,1997 PHS/EHD Letter Re:Disco Property <br /> Page/ Requirement/Recommendation Response <br /> Paragraph/ <br /> Sentence <br /> 2/5/5 Additionally,you are required to prepare a rose diagram for groundwater The addendum specifies that the report prepared for the investigation should <br /> gradient...plot it on groundwater contour maps... Report your results in the include this analysis. <br /> SWI report requested below. <br /> 3/1 Additionally,if you have any ... other contaminant data previously collected. To the best of our knowledge,all such data in the possession of Del Monte <br /> at our site that has not been submitted to PHS/EHD,you are requested to Foods has been provided to PHS/EHD. <br /> notify this agency,submit this data immediately and update cumulative data <br /> tables accordingly. <br /> 3/2/all We request that you...estimate contaminant mass flux across plume The addendum specifies that the report prepared for the investigation should <br /> transects...perpendicular to the plume.We request the use of expedited site include this analysis. <br /> assessment tools and/or appropriately screened monitoring wells to provide - -data for these estimates.In deciding the location of transects and developing <br /> mass flux estimates,please consider the variable dissolution of contaminants <br /> from the source.We request that you install permanent monitoring <br /> wells/clusters ...to monitor the plume.Include your proposal for the <br /> installation of these wells in the work plan addendum requested below... <br /> report your results in the SWI report... <br /> 3/3/1 We request that you monitor the groundwater contaminant plume on a Del Monte currently monitors groundwater at the Disco property on a <br /> quarterly basis. quarterly basis. <br /> j, 3/3/2&3 Additional wells will be required to define the down gradient extent of the This will be assessed after the additional workplan and addendum <br /> plume if the plume continues to migrate or the next set of wells fail to define investigation has been completed and more information on the new <br /> the plume. In the event continued plume migration is identified,or impact to downgradient area is obtained. <br /> water supply wells is predicted please include recommendations for the <br /> installation of additional wells or remediation alternatives in the Quarterly <br /> Reports requested below, <br /> r <br /> y SM98WPTABLE2.D0C <br />