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i . <br /> COS January 1996 Meeting <br /> Page 3 <br /> i1 <br /> i The purpose of the scope of work proposed in this workplan is to compile a complete site <br /> ' assessment report with all data obtained to date. All soil and 'groundwater analyses <br /> ( obtained to date should be tabulated. The estimated extent of'lthe contamination should be <br /> contoured on cross sections which include lithological strata arid well construction details. <br /> A mass balance should be calculated for each concentration contour. The environmental <br /> attenuation, leachability, waste characterization and monitoring well data presented in this <br /> i report will be used to determine the risk of leaving the waste in place, or the benefit of <br /> establishing and implementing site specific cleanup goals. <br /> l <br /> The compliance date for the work plan is February 29, 1996 <br /> The next meeting to discuss COS sites was scheduled for Tuesday, April 16, 1996 at 1:30 p.m. <br /> and will be held at the office of PHS/EHD. PHS/EHD appreciates the efforts of the COS to work <br /> cooperatively. <br /> 1 Please contact either Mary Mea s at (2091468-0337 Steve - <br /> Y Sasson at 'f209148$ 3459 or Linda <br /> Turkatte at (209)468-3441, if you have any questions or disagree with this summary. <br /> 1 Donna Heran,'REHS, Director <br /> nvironm4talHealth Division t <br /> 3I <br /> Diane M. Hinson, RENS <br />!r Supervisor <br /> k <br /> MMICOSI .MET <br /> cc: Elizabeth Thayer, CVRWQCB cc: Jim Escobar, COS Public Works <br /> cc: Stephen Chen, COS Public Works cc: Bob Murdoch, COS Public Works <br /> cc: K.D. Jones, Twinning cc: Tom Lutterman, Smith Environmental <br /> o <br />