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fr <br /> ry <br /> • <br /> 6ETTLER - RYAN INC. <br /> November 9, 2000 <br /> G-R Job#385121 <br /> Mr Robert Cochran <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon,CA 94583 <br /> RE: Third Quarter Event of August 15,2000 <br /> Groundwater Monitoring&Sampling Report <br /> Chevron Service Station#9-6171 <br /> 6633 Pacific Avenue <br /> Stockton,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 Potentiometnc 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 A Concentration Map is included as Figure 2 The chain of custody document and laboratory <br /> analytical report are also attached <br /> Please call if you have any questions or comments regarding this report Thank you. <br /> cerely, <br /> Q4 <br /> Deanna L Hard ng , �� �' <br /> Project Coordinator <br /> /tephenkrter �►,' ! <br /> Senior Geologist, R G No 5577 Q► <br /> nF cauF° <br /> Figure 1 Potentiometnc Map <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 /> Attachments Standard Operating Procedure-Groundwater Sampling <br /> Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytical Reports <br /> 0 <br /> 6747 Sierra Court , Suite J Dublin , California 94568 • ( 925 ) 551 - 7555 <br />