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6ETTLER - RYAN NC <br /> March 20, 2002 <br /> Mr Robert Cochran G-R Job#386847 <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 <br /> RE: First Quarter Event of February 14,2002 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station #9-2033 <br /> 508 West Charter Way <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 to accordance with G-R Standard <br /> Operating Procedure - Groundwater Sampling (attached) A point monitoring event was conducted with BP <br /> located at 620 West Charter Way, Former Texaco located at 440 West Charter Way and Arco #2168 located <br /> on West Charter Way, Stockton, California The Joint monitoring data is not included in the report <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 subnutted 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 /> lasted 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 /> Si e ly, <br /> Ile <br /> Q�311, ;0��. <br /> q� <br /> Deanna L Harding ����C7�P K� /0 <br /> Project Coordinator y <br /> No C 55734 <br /> * Exp 4 <br /> Hagop Kevork s Q <br /> P E No C55734 lq ClVll� <br /> Figure 1 Potentiometric Map <br /> Figure 2 Concentration Map <br /> Table 1 Groundwater Monitoring Data and Analytical Results <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 />