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INC. <br /> 6ETTLER - RYAN <br /> October 6, 2000 <br /> G-R Job#386845 <br /> Mr Robert Cochran <br /> Chevron Products Company <br /> P O Box 5004 <br /> San Ramon,CA 94583 <br /> RE: Second Quarter Event of June 13, 2000 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station #94275 <br /> 2905 West Benjamin Holt Drive <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) A joint monitoring event was conducted with Arco <br /> Station #2133 located at 2908 West Benjamin Holt Drive, Stockton, 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 l 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 The chain of custody document and laboratory analytical report are also attached <br /> Please call if you have any questions or comments regarding this report Thank you <br /> Sincerely, <br /> Q�OfESS1041 <br /> &naP-Harding �p OP KEj� <br /> �. <br /> Project Coordinator <br /> z <br /> m <br /> LU No C 5 734rn <br /> Hagop Kev rk d Exp O <br /> PE No C55734 * Q <br /> Figure 1 Potentiometric Ma T'9 CIV�1. OQ' <br /> I' Figure 2 Concentration Map TF OF C I <br /> Table 1 Groundwater Monitoring Data and Analytic <br /> Table 2 Groundwater Analytical Results <br /> Table 3 Dissolved Oxygen Concentrations <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 />