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• rj <br /> SIERRA <br /> fJ � II <br /> October 1, 1992 <br /> Enuronmenlal Seri cen <br /> Clint Rogers <br /> Chevron USA <br /> P O Box 5004 <br /> San Ramon, CA 94583 <br /> Re Chevron Service Station #9-6171 <br /> 6633 Pacific Avenue <br /> Stockton, California <br /> SES Project #1-146-04 <br /> Dear Mr Rogers <br /> This report presents the results of the quarterly ground water sampling at Chevron Service <br /> Station #9-6171, located at 6633 Pacific Avenue in Stockton, California (Figure 1, Appendix A) <br /> Five wells, MW-2 through MW-6, were sampled (Figure 2, Appendix A) <br /> On September 3, 1992, SES personnel visited the site Water level measurements were <br /> collected in all site wells and all wells were checked for the presence of free-phase hydrocarbons <br /> Free-phase hydrocarbons were not present in any of the site wells Water level data are shown <br /> in Table 1 (Appendix B) and a ground water elevation contour map is included as Figure 2 <br /> (Appendix A) <br /> The water samples were collected on September 3, 1992 in accordance with SES Standard <br /> Operating Procedure - Ground Water Sampling (Appendix C) All analyses were performed by <br /> Superior Precision Analytical, Inc of Martinez, California Analytic results for ground water are <br /> presented in Tables 2 and 3(Appendix B) The chain of custody document and laboratory analytic <br /> reports are included in Appendix D SES is not responsible for laboratory omissions or errors <br /> Thank you for allowing us to provide services to Chevron Please call if you have any <br /> questions <br /> Sincerely, <br /> BR F2 Sierra Environmental Services <br /> s <br /> Caro atop <br /> C 84 1� Staff Envir71ngineer <br /> al entist <br /> c 1 V 1�- ate~ <br /> Q r r Chris J r <br /> Pr #C4884fi <br /> CE/CJB/Iy <br /> 14604gM SE2 <br /> 1 <br /> Appendices A - Figures <br /> B - Tables <br /> C - SES Standard Operating Procedure <br /> D - Chain of Custody Document and Laboratory Analytic Reports <br /> P.O. Box 2546 Martinez, California 94553 (510) 370 - 1280 <br />