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Page 1 of 4 <br /> vow <br /> IWO <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Thursday, March 29, 2012 11:02 AM <br /> To: 'bmillman@advgeoenv.com' <br /> Subject: RE: Vapor Intrusion Mitigation System <br /> Good morning Brian. <br /> I met with Nuel Henderson this morning and discussed your proposal to begin injecting RegenOx immediately. I <br /> explained that the tenant at 104 Beverly Place, Tracy, had recently died and the home is currently vacant, making <br /> it easier and omitting the intrusive nature on the occupants, if the pilot test for RegenOx injections was <br /> performed now instead of waiting until the mitigation system has been installed. <br /> Nuel's response was to follow the directive by letter dated 22 November 2011 to install the vapor intrusion <br /> mitigation system first, then perform the pilot test involving RegenOx injections after the vapor intrusion mitigation <br /> system is in operation. <br /> The letter approving the Vapor Intrusion Mitigation System Work Plan, dated 08 February 2012, is being sent <br /> today from our office. This will allow the mitigation system to be installed immediately. Once the system is in <br /> operation, the pilot test for RegenOx injections can be performed. <br /> Please keep me informed on the progress of installing the mitigation system. <br /> Thank you, Brian. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> Phone: (209)468-9852 <br /> Fax: (209)468-3433 <br /> Email: vmccartne}Ccusicehd.com <br /> From: Brian Millman [mailto:bmillman@advgeoenv.com] <br /> Sent: Wednesday, March 28, 2012 12:02 PM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: Vapor Intrusion Mitigation System <br /> Vicki, <br /> No problem Vicki. <br /> I heard back from the manufacturer of the Fantech fan proposed to be used in the mitigation <br /> system, they said there is no decibel rating for that type of fan but it is very quiet. <br /> I did not contact Terra-Petra. but after reviewing the plan and design I think one of the reasons <br /> the piping along the eastern wall may be shorter is due to the double vent for the crawl space <br /> located in the northeast corner. I think it was designed to minimize the amount of ambient air <br /> brought in through those vents. I think that is one reason for the shorter piping. <br /> Additionally, I spoke to Virginia Skelton late last week and she informed me that Lisa, her tenant, <br /> passed away that weekend It was a very strange coincidence to say the least. <br /> I would like to discuss the ISCO injections proposed at the site. The November 2011 letter from <br /> 3/29/2012 <br />