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Page 1 of 4 <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Tuesday, January 21, 2014 10:39 AM <br /> To: 'Andrew Dorn' <br /> Subject: RE: Valentine Site-2315N. EI Dorado, Stockton <br /> Good morning Andrew, <br /> Our internet server has been down all morning and I just received your email. <br /> In response to your first question, the reason that there are differences between the email and the letter is <br /> because when the waste oil tank was removed, Aroclor 1242 was detected at 1.2 ppm. When I spoke to Jim <br /> Barton at the Regional Board about this, Jim said that since PCBs were detected in soil in April 1987 when <br /> removing the waste oil tank, the groundwater should be tested for dioxins and furans. What is the cost for <br /> analyzing for dioxins and furans? <br /> In response to your second question, the groundwater should be tested for total chromium, not hexavalent <br /> chromium. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209)468-9852 <br /> Email: vmccartney(15�sjcehd.com <br /> I <br /> From: Andrew Dorn [mailto:ADorn@groundzeroanalysis.com] <br /> Sent: Tuesday, January 21, 2014 7:35 AM <br /> To: Vicki McCartney [EH] <br /> Cc: Jenny Weese; Ray Kablanow IIII <br /> Subject: Valentine Site - 2315 N. EI Dorado, Stockton <br /> I <br /> I <br /> From: Andrew Dorn <br /> Sent: Monday, January 20, 2014 3:50 PM <br /> To: 'Vicki McCartney [EH]' <br /> Cc: Jenny Weese; Ray Kablanow <br /> Subject: Valentine Site -2315 N. EI Dorado, Stockton <br /> Hello Vicki, <br /> I will be performing the groundwater sampling of well MW-1 tomorrow (1/21) at the Valentine Site <br /> located at 2315 N. EI Dorado St. in Stockton. I had a couple questions prior to performing the work: <br /> 1. There is a slight difference between your email attached below and the 1/13/14 letter requesting <br /> the sampling of MW-1 in regards to the waste oil tank.Your email states to analyze for PCB's and <br /> if they are detected,then analyze for dioxins and furans.The letter appears to request analyzing <br /> 1/21/2014 <br />