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Page 1 of 1 <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney[EH] <br /> Sent: Thursday, March 06, 2008 1:13 PM <br /> To: 'Murphy, Mike' <br /> Subject: RE: 620 W. Charter, Stockton (1 Q08 QMR) <br /> Mike: <br /> I have reviewed the analytical data for groundwater collected at the Shell station at 620 Charter Way for the first <br /> quarter 2008 sampling event. I want to talk to the County inspector who oversees the UST system at the Shell <br /> station but he is in the field today doing inspections and I will not be able to discuss this site with him until <br /> tomorrow. You may want to compare the free product found in groundwater samples collected from MW-16-50 <br /> with the gasoline stored in the USTs to see if there is a difference. Does the gasoline detected in MW-16-50 <br /> appear to be aged gasoline and does it match the fuel fingerprint for gasoline collected in groundwater samples <br /> from nearby monitoring wells? These are questions that need to be answered before a determination can be <br /> made as to whether a new release has occurred at the Shell station. <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: cmccartney�Ncdd_com <br /> From: Murphy, Mike [mailto:mrmurphy@craworld.com] <br /> Sent: Wednesday, March 05, 2008 1:53 PM <br /> To: Vicki McCartney [EH] <br /> Subject: FW: 620 W. Charter, Stockton (1Q08 QMR) <br /> Vicki—per our telephone conversation, here is the first quarter data we received from Blaine Tech. This <br /> data has not been QC'd by CRA yet. The lab did confirm the THPg detection in well MW-16-50. Blaine <br /> identified 0.03 feet separate phase hydrocarbons in the well with an interface probe today. Please let me <br /> know your comments after you have reviewed the data. <br /> Regards, <br /> Mike Murphy <br /> Conestoga-Rovers &Associates(CRA) <br /> 19449 Riverside Drive, Suite 230 <br /> Sonoma, CA 95476 <br /> P. (707)933-2367 <br /> F. (707)935-6649 <br /> C. (510)385-3116 <br /> MRMurp @craworld.com <br /> Conestoga-Rovers and Associates has acquired the former Cambria Environmental Technology <br /> Visit us at www.craworld.com <br /> 3/6/2008 <br />