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is 6ETTLER - RYAN N <br /> June 4, 2003 <br /> G-R Job#386582 <br /> Mr Robert Cochran <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 <br /> RE: Second Quarter Event of May 1, 2003 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station#9-1452 <br /> 334 East Main Street <br /> Ripon, California <br /> Dear Mr Cochran <br /> This report documents the well development and the most recent groundwater monitoring and sampling event <br /> performed by Gettler-Ryan Inc (G-R) at the referenced site All field work was conducted in accordance with <br /> G-R Standard Operating 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 l A Potentiornetnc 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 /> i <br /> Deanna L Harding <br /> Project Coordinatorip <br /> o � <br /> �k No 7-265 <br /> Robert C Mallory �, Exp O a `q <br /> Registered Geologist No 7285 gOFCA�1F�Q? <br /> Figure 1 Potentiometne Map <br /> Figure 2 Concentration Map <br /> Table 1 Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results-Oxygenate Compounds <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 />