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1 fi�0 <br /> 6E T TL ER -� YA N INc. <br /> a <br /> January 5 2006 <br /> G-R Job#386582 <br /> Mr.Darin Rouse <br /> ChevronTexaco Company <br /> P.O. Box 6012, Room K2260 <br /> I San Ramon, CA 94583 <br /> RE: Fourth Quarter Event of November 28,2005 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station#9-1452 <br /> 334 East Main Street <br /> Ripon,California <br /> Dear Mr. Rouse: <br /> This report documents the most recent groundwater monitoring and sampling event performed by Gettler-Ryan <br /> Inc. (G-R) at the referenced site. All field work was conducted in accordance with G-R Standard Operating <br /> Procedure-Groundwater Sampling (attached). <br /> Static groundwater levels were measured and the wells were checked for the presence of separate phase <br /> 1 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 submitted to a state certified laboratory for <br /> analyses. The field data sheets for this event are attached. Analytical results are presented in the table(s) listed <br /> below. A Concentration Map is included as Figure 2. The chain of custody document.and laboratory analytical <br /> report are also attached. <br /> Please call if you have any questions or comments regarding this report. Thank you. , <br /> Sinc y, <br /> E <br /> �%ONAL Ger <br /> Deanna L. Harding' c� p <br /> Project Coordinator <br /> a 0 m N <br /> �r • or No.7504 ; <br /> f vU44 <br /> _ N�A <br /> Robert A. auritz n <br /> O <br /> FSenior Geologist, P.G.No. 7504 CALF <br /> Figure 1: Potentiometric Map <br /> Figure 2: Concentration Map <br /> Table 1: Groundwater Monitoring Data and Analytical Results <br /> 'fable 2: Groundwater Analytical Results-Oxygenate Compounds <br /> Attachments: Standard Operating Procedure-Groundwater Sampling <br /> 1 ( Field Data Sheets <br /> II Chain of Custody Document and Laboratory Analytical Reports <br /> 6747 Sierra Court , Suite J Dublin , California 94568 ( 925 ) 551 - 7555 <br />