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6ETTLER - RYAN INC. <br /> August 27, 2002 <br /> G-R.Job#386844 <br /> Mr Robert Cochran <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 <br /> RE: Third Quarter Event of July 18,2002 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station#9-6258 <br /> 2409 East Main at F Street <br /> Stockton,California <br /> Dear Mr Cochran <br /> This report documents the most recent groundwater monitoring and sampling event performed by Gettler-Ryan <br /> Inc (G-R.) at the referenced site All field work was conducted in accordance with G-R Standard Operating <br /> Procedure-Groundwater Sampling(attached) <br /> Static groundwater levels were measured and the wells were checked for the presence of separate-phase <br /> hydrocarbons Static water level data, groundwater elevations, and separate-phase hydrocarbon thickness (if <br /> any) are presented in the attached Table 1 A Potentiometric Map is included as Figure I <br /> Groundwater samples were collected from the monitoring wells and submitted to a state certified laboratory for <br /> . analyses The field data sheets for this event are attached Analytical results are presented in the table(s) listed <br /> below A Concentration Map is included as Figure 2 The chain of custody document and laboratory analytical <br /> report are also attached <br /> Please call if you have any questions or comments regarding this report Thank you <br /> S erely, <br />� � I <br /> i <br /> DeannaL Harding Qp,OFESS � <br /> Protect Coordinator p SCP KFO(�� <br /> v, <br /> W No C 55734 M <br /> Hagop Kevork * Exp <br /> P E No C55734 <br /> (P <br /> Figure 1 Potentiometric Map �'9j CIVIL <br /> Figure 2 Concentration Map OF C p,L1�0 <br /> Table 1 Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results <br /> Attachments Standard Operating Procedure-Groundwater Sampling <br /> Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytical Reports <br /> 6747 Sierra Court , Suite J • Dublin , California 94568 { 925} 551 - 7555 <br />