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i <br /> ETTLER INC.YAN <br /> ` January 11, 2002 ; <br /> G-R Job#386582 <br /> Mr. Robert Cochran <br /> Chevron Products Company it i <br /> { P.O. Box 6004 <br /> San Ramon, CA 94583 <br /> w <br /> RE: Fourth Quarter Event of November 29, 2041 i <br /> Groundwater Monitoring &Sampling Report <br /> I Chevron Service Station#9-1452 <br /> 334 East Main Street <br /> Ripon, California �a <br /> Dear Mr: Cochran: <br /> This report documents the most recent groundwater monitoring and sampling event performed by Gettler-Ryan <br /> i 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 /> a <br /> f Static groundwater levels were measured and the wells were checked for the presence of separate-phase I <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 for <br /> {. analyses. The field data sheets for this event are attached. Analytical results are presented in the table(s) listed <br /> 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 /> Sincerely, i; 1 <br /> — Foix Of ESSI0/V :f31 <br /> Deanna L. Harding p KEL 9�<!, <br /> Project Coordinator �4,� PC? 0,� <br /> vs ]i , <br /> m <br /> No. C 5573 <br /> CC <br /> Exp. i <br /> Hagop Kevork <br /> P.E. No. C55734 <br /> ClVl1- <br /> Figure 1:' P <br /> Potentiometric Ma T,9TE OF C A0F�� ;I i <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 'I 1 <br /> 6747 Sierra Court , Suite J Dublin , California 94.568 �j( 925) 551a-I 7555 1 <br />