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Page 3 of 4 <br /> Best Regards, <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(cDsjcehd.com <br /> From: Brian Millman [mailto•bmillman advgeoenv.coml <br /> Sent: Thursday, July 26, 2012 1:46 PM <br /> To: Vicki McCartney [EH] <br /> Cc: Robert Marty <br /> Subject: LOP Site Updates, Scheduling, and Inquiries <br /> Vicki, <br /> We have not had any contact for a while so I would like to update you on work performed <br /> and upcoming and inquire about the status of a few sites. <br /> Weldon Church (104 West Beverly Place, Tracy, CA_)_ <br /> On 25 June 2012, the soil vapor intrusion mitigation system was installed in the crawl <br /> space at the site and has been operating since then. There was an initial delay in installing <br /> the system due to resistance we encountered from the tenant while trying to gain access to <br /> the property. That tenant moved out this month and the property owner, Lacy Skelton, <br /> moved in. Therefore we should not encounter additional access issues as we move <br /> forward with the project. <br /> I have begun the process of coordinating and scheduling the initiation of the in-situ <br /> chemical oxidation pilot test (ISCO) at the site. The pilot test will consist of three weekly <br /> applications of the chemical oxidant with approximately two weeks between each <br /> application. Additionally, based on the draft Monitoring and Reporting Program a limited <br /> sampling event will be performed one week following each application. I will notify you <br /> when I have confirmed the dates for the first application; I anticipate the first application will <br /> take place during the third week of August. <br /> Also, prior to performing the pilot test I would like to schedule a semi-annual ground water <br /> sampling event for 02 August 2012. Wells MW-1, MW-4, MW-7, and MW-8 will be sampled <br /> for TPH-g, BTEX and DCA; the baseline sampling for the pilot test was performed in <br /> January 2012. Additionally, the day of the sampling event a sampling port will be installed <br /> in the PVC riser of the vapor intrusion mitigation system and an air sample will be collected <br /> to evaluate the air being extracted from the crawl space. <br /> Tracy Marine Sales (2353 Toste Road_Tracy,_CA): <br /> A No Further Action Required Report was submitted in March 2012, what is the status of <br /> the review of this report? <br /> 7/26/2012 <br />