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Pi <br />0 <br />6ETTLER-RYAN INC. <br />June 21, 2000 <br />G -R Job #386408 <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 25, 2000 <br />Groundwater Monitoring & Sampling Report <br />Former Chevron Service Station #9-5775 <br />301 West Kettleman Lane <br />Lodi, California <br />Dear Mr Cochran <br />This report documents the most recent groundwater monitoring and sampling event performed by Gettler- <br />Ryan Inc (G -R) at the referenced site All field work was conducted in accordance with G -R Standard <br />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 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 <br />for analyses The field data sheets for this event are attached Analytical results are presented in the table(s) <br />listed below The chain of custody document and laboratory analytical report are also attached <br />Please tail if you have any questions or comments regarding this report Thank you <br />IHVi <br />RED GEC <br />g �fy pJG1A5 d e <br />I�rqject Coordinator <br />No. 6882 <br />Dou as Lee <br />Senior Geologist, R G No 6882 <br />Figure 1 Potentiometric 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 • ( 9 2 5 ) 551-7555 <br />