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Vicki McCartne [EH ��. <br /> From: Vicki McCartney [EH] <br /> Sent: Wednesday, January 21, 2004 3:14 PM <br /> To: 'tcuellar@advgeoenv.com' <br /> Subject: GrewaI's Market <br /> Tim, <br /> I have some concerns about the analytical data provided in a groundwater monitoring report dated 14 January 2004 for <br /> Grewal's Market at 4100 East Fremont Street in Stockton, California. <br /> 1. Why was a methanol blank used for the groundwater samples analyzed by EPA method 503018015M18020? <br /> 2. The method blank result for diesel analysis was not provided in the laboratory report. Please provide this result. <br /> 3. The LCS/LCSD percent recoveries for the''diesel analysis are very low . A control limit as low as 55 percent for the LCS <br /> is unacceptable and I consider the diesel results to be biased low. <br /> I look forward to hearing from you. Please call me if you have any questions. <br /> Thanks, Tim. <br /> Vicki McCartney, REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 304 E. Weber Avenue <br /> Stockton, CA 95202-2708 , <br /> Phone (209) 468-3456 <br /> Fax (209) 468-3433 <br /> vmccartney@sjcehd.com <br /> i <br /> 1 ' <br /> f <br /> 1i <br /> I <br /> 1 <br /> Y <br />