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• 596ETTLER - RYAN INC. <br /> March 17, 2005 <br /> G-R Job 4386847 <br /> Mr Darin Rouse <br /> CheN ron Texaco Company <br /> P O Box 6012 Room K2260 <br /> San Ramon CA 94583 <br /> RE First Quarter Event of February 8,2005 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station#9-2033 <br /> 508 West Charter Way <br /> Stockton, California <br /> Dear Mr Rouse <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 "ith BP <br /> located at 620 West Charter Way, Former Texaco located at 440 West Charter Way and with Arco 42168 <br /> located on West Charter Way Stockton California Joint monitoring data is not included in the report <br /> Static groundwater levels were measured and the wells were checkcd 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 I 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 /> Sincerely, <br /> 116a.w"'f"C 11,��L '' .:T2!!:­11,1 <br /> 00 <br /> 01 <br /> Deanna L Harding <br /> Project Coordinator r�GD �yC <br /> Vo C 55734 M <br /> *CC UL Exp Zo <br /> Hagop Kevork <br /> P E No C55734 CIVIL <br /> Figure I Potentiometric Map OF C AQ^ ' <br /> Figure 2 Concentration Map <br /> Fable I Groundwater Monitoring Data and Analytical Results <br /> Table 2 f ield Measurements <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 Goid Camp Drive Suite 170 • Rancho Cordova CA 95670 • (916) 631-1300 - Fax (916) 631 1317 <br /> 1364 N McDowell Blvd Suite 62 • Petaluma (.A 94954 • (707) 769-3255 • Fax (707) 789-3218 <br />