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}K <br /> James Giottonini <br /> City of Stockton <br /> Fontana Drive at Smith Canal <br /> April 4, 2001 <br /> Page 2 <br /> in conjunction with previous sampling events may provide enough. <br /> J <br /> information to allow meaningful interpretation and trend analysis. <br /> Alternatively, information from the grab groundwater investigation and the <br /> installation of a monitoring well may prolong the quarterly monitoring by an <br /> additional four quarters. <br /> • In addition to the investigations described above, the Closure Report requires <br /> certain modifications before it can be considered a complete document. A <br /> well survey that includes well logs and complete information needs to be j <br /> formally presented to PHS/EHD and to the Central Valley Regional Water <br /> Quality Control Board (CVRWQCB). The calculations for mass <br /> balance/mass flux need to be re-done. The analytical tables need to be <br /> reformatted so that trends are more readily apparent to the reader. <br /> Although not discussed at the meeting, plots of chemical concentrations versus time <br /> would also be a helpful addition for the Closure Report. <br /> If you have any comments, questions, or additions to this summary,please contact Dot <br /> Lofstrom at (209) 468-3436 or Jeff Wong at (209) 468-0335. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Dot Lofstrom, R.G. I <br /> LOP/Site Mitigation Unit <br /> cc CVRWQCB-Marty Hartzell <br /> ATC—Jeanne Homsey i <br /> ' I <br /> i <br /> 1 <br />