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• <br /> ki & ETTLER - RYAN INC. <br /> November 25, 2002 <br /> G-R Job#386854 <br /> Mr Robert Cochran <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 <br /> RE. Fourth Quarter Event of October 28,2002 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station #9-8264 <br /> 3775 Tracy Boulevard <br /> Tracy, 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) A Joint groundwater monitoring event was conducted with Shell <br /> Service Station, located at 3725 South Tracy Boulevard, Tracy, California <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 1 <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 to 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 /> Sincerely, <br /> uoil�� <br /> J <br /> Deanna L Harding GFO <br /> Project Coordinator �� �G SOC <br /> Na <br /> * No 72$5 �r <br /> Robert C Mallory s� Exp 0 b <br /> Registered Geologist No 7285 OFCA`,F�Q� <br /> Figure 1 Potentiometric Map <br /> Figure 2 Concentration Map <br /> Table I Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results <br /> Table 3 Groundwater Analytical Results <br /> Table 4 Joint Groundwater Monitoring Data- Shell <br /> Attachments Standard Operating Procedure-Groundwater Sampling <br /> is 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 />