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SEC ® R <br /> isMr Mark Chandler <br /> November 23, 2004 <br /> Page 3 <br /> FORTHCOMING ACTIVITIES <br /> During the fourth quarter 2004, SECOR will conduct groundwater monitoring and sampling activities at the <br /> site The results of these activities will be summarized in a quarterly monitoring report to be submitted in <br /> January 2005 In addition, SECOR will prepare a site conceptual model (SCM) to determine if the site <br /> qualifies for no further action (NFA) status If the site meets NFA requirements, SECOR will submit <br /> documentation requesting site closure,which will be prepared in accordance with guidelines presented in the <br /> Appendix B Th-Regional Board Staff Recommendation For Preliminary Investigations And Evaluations Of <br /> Underground Tank Sites—No Further Action Requests <br /> This report presents our understanding of existing conditions at the subject site The conclusions contained <br /> herein are based on the analytical results and professional judgment, which are in accordance with current <br /> standards of professional practice,no other warranty is expressed or implied SECOR assumes no liability for <br /> exploratory borings or data reported by other consultants or contractors <br /> Sincerely, <br /> SECOR International Incorporated <br /> Gam"9 — `� `1 <br /> Todd Brown Michael Stephens, CEG, CHG, REAII <br /> Associate Geologist Senior Geologist <br /> TBIMS kf <br /> Attachments Figure 1 —Site Location Map <br /> Figure 2—Groundwater Elevation Contour Map—July 23, 2004 <br /> Figure 3—Dissolved Hydrocarbon Concentration Map—July 23, 2004 <br /> Figure 4—Site Plan Showing Remediation System Wells, Piping, and Treatment System <br /> Table 1 —Groundwater Potentiometric Elevations <br /> Table 2—Groundwater Sample Analytical Results <br /> Table 3—Groundwater Analytical Results for Fuel Oxygenates <br /> Attachment 1 — Field Data Sheets ��Q GEp10 <br /> Attachment 2— Laboratory Analytical Report and Chain of Custo <br /> Attachment 3— Remediation System Performance Data Stop <br /> �5 <br /> u, Mtichae <br /> cc Mr Harlin Knoll, San Joaquin County Public Health Services No EG2112 <br /> Ms Elizabeth Thayer, California Regional Water Quality Control Board GEIFIED Q <br /> VAGINE�RING <br /> JJ9 GE01-GG15l 0 <br /> TFOF <br /> C F <br /> I Mrne OtilLockefordlQMRs120041Lockeford 03-04 doc SECOR Intemationai Incorporated <br />