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September 11, 2000 <br />50441 <br />Mr. Vidal Pedraza <br />San Joaquin County Public Health Service <br />Environmental Health Division (PHS/EHD) <br />Page 7 <br />Harding Lawson Associates <br />' Based on the analytical results and the observations made in the field, HLA concludes that the soils beneath <br />the UST were not impacted and do not require any additional sampling or investigation. <br />' Based on the information and conclusions presented in this report and summarized above, HLA recommends <br />that the UST be considered appropriately closed and a no -further -action -required letter be issued by the <br />PHS/EHD to Newark Sierra. <br />LMTATIONS <br />' The activities were conducted in accordance with practices and procedures generally accepted in the <br />consulting engineering field. Information presented in this report does not confirm the presence or absence <br />of suspect materials at the property, but indicates whether the possibility of such materials exists based on <br />' the scope of work performed. Our professional opinions expressed herein are based on limited data; no other <br />warranty is given or implied by this report. This report is complete and accurate to the extent that cited <br />reports and agency information are complete and accurate. <br />' Please contact either of the undersigned at if you have any questions regarding this information or any other <br />aspect of the project. <br />[1 <br />I <br />LJ <br />I <br />Yours very truly, <br />Attachments: Table 1 - Analytical Results <br />Plate I - Site Vicinity Map <br />Plate 2 - Site Plan <br />Plate 3 — Detailed Site Plan and Soil Sample Location Map <br />Appendix A - Copies of Laboratory Analytical Reports <br />Appendix B — Copies of Compaction Curves and Compaction Test Results. <br />Appendix C — Copies of UST Disposition Tracking Records, Non -Hazardous Waste <br />Manifests, and Tank Closure Certification Form <br />cc: Mr. Mark Vincent, Newark Sierra Paperboard Corporation <br />GDn/GUAVL950000\50441\ WP\50441130.doc <br />Ca <br />