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PUBLIe HEALTH SEk'VICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer <br /> 445 N. San Joaquin Street • P. O. Box 388 • Stockton, CA 95201-0388 <br /> 209/468-3420 COPY <br /> UNOCAL REFINING AND MARKETING DIVISION <br /> P0BOX 5155 <br /> SAN RAMON CA 94583 f0AR `? 0 19911: <br /> RE: UNOCAL BULK PLANT #0950 <br /> 2835 NAVY DRIVE <br /> STOCKTON CA <br /> This letter confirms the completion of site investigation and remedial action for the underground storage tank(s) at <br /> the above site. Thank you for your cooperation throughout this investigation. With the provision that the <br /> information provided to this agency was accurate and representative of site conditions, no further action related to <br /> the underground tank release is required based on the available information as set forth in California Code of <br /> Regulations, Title 23, Division 3, Chapter 16, Article 11, Section 2721(e) (Underground Storage Tank Corrective <br /> Action Regulations). <br /> Please be advised that the following conditions continue to exist at the above site. Chlorinated and petroleum <br /> hydrocarbon contamination exists in groundwater on site and is likely the result of operations at adjacent Port of <br /> Stockton facilities(referenced in the Central Valley Regional Water Quality Control Board's "Closure Letter" dated <br /> 24 August 1994). <br /> If the present or proposed use of this site changes, it is the property owner's responsibility to promptly notify this <br /> agency. <br /> i <br /> If you have any questions regarding this matter, please contact Harlin Knoll at (209) 468-3442. <br /> Donna Heran, RENS, Director <br /> Environmental Health Division <br /> bL <br /> Harlin Knoll, Senior REHS Diane M. mson, REHS . <br /> Site Mitigation Unit Supervisor <br /> HK:lb <br /> c: CVRWQCB, Underground Tank Section <br /> Elizabeth Thayer <br /> c: CVRWQCB <br /> Gail Wiggett <br /> c: Port of Stockton <br /> Charlene Wall <br /> P.O. Box 2089 <br /> Stockton, CA 95201-2089 <br /> c: Kaprealian Engineering Inc. (KEI) <br /> 2401 Stanwell Drive, Suite 400 <br /> Concord, CA 94520 <br />' A Division of San Joaquin County Health Care Services <br />