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Oki GETTLER - RYAN <br /> INC. <br /> November 7, 2002 <br /> Mr Robert Cochran <br /> G-R Job#386846 <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 <br /> RE. Fourth Quarter Event of October 4, 2002 <br /> Groundwater Monitoring & Sampling Report <br /> Chevron Service Station #9-9840 <br /> 4344 Waterloo Road <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 l 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 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 /> Nncerely, <br /> Deanna L Harding y po ESSIO <br /> Project Coordinator Q P KE <br /> Q.� O ti <br /> It y rPC� O�� <br /> C7 m <br /> Hagop Kevork No C 20 <br /> 5573 r <br /> P E No C55734 y� EXP. �� <br /> Figure 1 Potentiometric Map ��•9?, CjVIL ��Q' <br /> Figure 2 Concentration Map F t7F C�L�FpQ` <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 /> • <br /> 6747 Sierra Court , Suite J Dublin , California 94568 { 925) 551 - 7555 <br />