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212 Industrial Drive <br /> Page 2 of 2 <br /> I <br /> EHD directed that groundwater samples collected from each proposed borehole be analyzed for <br /> 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane(EDB), and results be reported at 0.5 <br /> micrograms per liter(gglL). Jan Thompson informed EHD that in 1998, 1999, and 2000, <br /> groundwater samples were analyzed for 1,2-DCA and EDB and the results were non-detect at 0.5 I <br /> µg/L. Contingent upon hardcopy laboratory data being submitted to EHD that confirms non-detect <br /> results for 1,2-DCA and EDB at 0.5 pg/L, EHD agrees to the removal of these compounds from the <br /> analytical list for groundwater analysis. <br /> I <br /> Should you have any questions or concerns regarding this letter, please contact Vicki McCartney, <br /> REHS, by mail (address on letter head), by telephone at (209) 468-3456, or by e-mail at <br /> vmccartney@sjcehd.com.- <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Vicki McCartney,REHS Nuel C.Henderson,Jr.,RG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> C' James L.L. Barton-CVRWQCB <br /> Joe Vasquez-Ground Zero <br /> Doug Reynolds—H&H Engineering <br /> r <br /> i <br />