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Page 1 of 2 <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Wednesday, June 16, 2010 1:24 PM <br /> To: 'Magney, Tom' <br /> Subject: RE: 620 Charter Way, Stockton, CA <br /> Tom: <br /> It is I who must apologize for not providing a clear directive. <br /> What I meant to indicate is that I would like CRA to review the existing soil data and do a Tier 1 analysis against <br /> ESLs and CHHSLs. If the results do not pass the vapor intrusion pathway risk analysis for gross contamination <br /> and direct exposure, and as such, can not be technically justified, then please submit a work plan for assessing <br /> soil gas concentrations at the Interstate Shell Service Station site at 620 West Charter Way in Stockton, <br /> California. <br /> Please do not hesitate to contact me if you need additional clarification. <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: tiniccarnigy@,,sjcehd,cLQm <br /> From: Magney,Tom [mailto:tmagney@craworld.Com] <br /> Sent: Wednesday, June 16, 2010 8:33 AM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: 620 Charter Way, Stockton, CA <br /> Vicki: <br /> First my apologies for the rambling message yesterday - long day. <br /> Our client wished me to confirm whether: <br /> 1) We should look at existing data and do a Tier 1 analysis against CHHSLs, ESLs, etc. <br /> If these don't pass the vapor intrusion pathway risk analysis, then we would produce a <br /> work plan for assessing soil vapor concentrations at the site. <br /> 2) Or if you mean we should look at new data produced from the planned site <br /> assessment activities. If so, then I would need an extension until after we've received <br /> that data. I believe we have the work scheduled in late July, but I need to check with our <br /> field staff who are currently out of the office. <br /> Thank you, <br /> Tom Magney <br /> Conestoga-Rovers&Associates <br /> (formerly Cambria Environmental Technology, Inc) <br /> 19449 Riverside Drive, Suite 230 <br /> Sonoma, CA 95476 <br /> Office: 707-933-2366 <br /> 6/16/2010 <br />