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1 <br /> Lisa MedinaEH <br /> [ ] <br /> From: Lisa Medina [EH] <br /> Sent: Wednesday, March 13, 2013 10:54 AM <br /> To: Jeremy Gekov Ogekov@Langan.com) <br /> Subject: (420 N Madison Carando Machine Works) & (423 N Madison COS Development) <br /> Good Morning Jeremy, <br /> The EHD met with Jim Barton this morning. In order for the EHD to further consider closure consideration please provide <br /> a closure report for the above referenced sites to the EHD. One report that includes both sites can be submitted. <br /> Include the following: <br /> 1) A calculation of contaminant mass remaining in both soil and groundwater. <br /> 2) A prediction of how long(in years)it will be until dissolved contaminant concentrations on site decline to reach <br /> water quality goals. <br /> 3) A discussion of potential vapor intrusion threat from the remaining contamination in both soil and groundwater. <br /> 4) Confirmation that a sensitive receptor survey has been completed for this site,and <br /> 5) All requirements of the Tri-Regional Guidelines Appendix A. <br /> If you should have any questions please call: Regards. <br /> Lisa Medina,Senior REHS <br /> San Joaquin County Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton,CA 95205 <br /> (209)468-3455 <br /> Imedina@sicehd.com <br /> i <br /> Email is virus free, scanned by Emsisoft Anti-Malware - www.emsisoft.com <br /> Last signature update:3/5/2013- 12,091,028 known threats in database <br /> i <br />