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6E T TL ER - RYAN INC. <br /> i <br /> August 23, 2006 ' <br /> GR Job 4385121 <br /> Ms Stephanie Furgal - - <br /> Chevron Environmental Management Company <br /> P O Box 6012, Room K2240 <br /> San Ramon,CA 94583 <br /> RE. Third Quarter Event of July 19,2006 ' <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station #9-6171 <br /> 6633 Pacific Avenue <br /> Stockton, California ' <br /> Dear Ms Furgal <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 <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 /> Sinc y, I - - I <br /> r <br /> nc�' <br /> Deanna L Harding ' <br /> Project Coordinator <br /> Table 1 Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results-Oxygenate Compounds ' <br /> Table 3 Groundwater Analytical Results—TPH by GC-FID <br /> Table 4 Groundwater 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, CA 94568 + (925) 551-7555 - Fax (925) 551-7888 - <br /> 3140 Gold Camp Drive Suite 170 • Rancho Cordova CA 95670 + (916) 631-1300 + Fax (916) 631 1317 <br /> 1364 N McDowell Blvd Suite B2 • Petaluma CA 94954 + (707) 789-3255 • Fax (707) 789 3218 <br />