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091 6ETTLER - RYANINC. <br /> June 2, 2003 <br /> G-R Job#386854 <br /> Mr Robert Cochran <br /> Chevron Products Company <br /> P O Box 6044 <br /> San Ramon, CA 94583 <br /> RE, Second Quarter Event of April 28, 2003 <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 Potentiometnc 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 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 /> Sincerely, <br /> Deanna L Harding D GE <br /> Project Coordinator O` <br /> `roGNa <br /> 0 0� <br /> �r No 7285 � 74 <br /> Robert C Mallory Exp_00 Q. <br /> Registered Geologist No 7285 d'q <br /> ►-��O <br /> Figure 1 Potentiometric Map SOF CA <br /> Figure 2 Concentration Map <br /> Table 1 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 /> 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 />