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PUBLIC YIEALTH SERN"ICES <br /> Pquln, <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION ITFz z <br /> X <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer •. <br /> 304 E. Weber Ave., Third Floor • R O. Box 388 • Stockton, CA 9520U--0388ijiii5 <br /> 209/468-3420 C(o CD <br /> KENNETH EARNEST <br /> ULTRAMAR INC JAN ? <br /> P O BOX 466 <br /> HANFORD CA 93232-0466 <br /> RE: BEACON STATION#695 SITE CODE: 1841 <br /> 900 S CHEROKEE LN <br /> LODI CA <br /> The report, "Appendix B-Risk Based Corrective Action Ter 1 and Tier 2 Analysis, Site Closure Evaluation <br /> Report", dated October 16, 1996, was recently evaluated at a meeting of The Technical Review <br /> Committee(TRC). Based on comments from this meeting, San Joaquin County Public Health Services, <br /> Environmental Health Division(PHS-EHD)offers the following for your consideration. <br /> The diesel plume in the groundwater at this site must be delineated. Three additional quarters of <br /> groundwater sampling will likely be sufficient to demonstrate the distribution of diesel constituents in <br /> groundwater at this site. You may propose to abandon(or to not sample)those wells that will not be <br /> used for this purpose. In addition, you may propose to abandon the vapor extraction wells at the site, <br /> as they will no longer be needed for this investigation. <br /> The analytical results of the samples collected from the former waste oil tank that was removed in <br /> 1986 have never been submitted. If these results are available, please forward them to this office. <br /> Unless additional information introduces new risks not previously identified, PHS-EHD will process this <br /> site for final regulatory closure after the above items have been satisfied. PHS-EHD acknowledges the <br /> tremendous effort by your company to investigate and remediate the contamination at this site and looks <br /> forward to a final site certification. <br /> If you have any questions or wish to discuss this letter in more detail, please call Linda Turkatte, Senior <br /> REHS, at(209)468-3441. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Linda Turkatte, Senior REHS Ma�agorio, REHS <br /> Site Mitigation Unit Supervisor <br /> LT <br /> c: CVRWQCB-Beth Thayer <br /> c: Delta Environmental, Owen Kittredge <br /> A Division of San Joaquin County Health Care Services <br />