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C) <br /> Ic <br /> . SIC � �• <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer6)i 60" <br /> P.O.Bo,2009 (1601 East Hazelton Avenue) Stockton)California 95201 <br /> (209) 468-3400 <br /> COPY <br /> GO <br /> ARC; Mo. 7 <br /> A!--tn: Kyle Christie <br /> 22c-zj ;3ou1.h CtierokeLz Laine <br /> Edi, a <br /> RE: wa---te-oji "anip. E.xcavation workplans; ARCO Station; 225 S. Cherokee <br /> L-Ane, Lodi. <br /> Ples 4, 1,e advi,�ed that this office Itas reviewed the above referenced <br /> wcit.kpl-uri. Clur review has been somewhat hindered due to preliminary <br /> -iriforTn;ati1:,n omitted from the workplan. Please refer to the attached <br /> C'hec'k li-st. <br /> 7ri ac:d'itiori to the lack of preliminary information, we have the following <br /> cc rnrnen is reciardincl the proposed workplan: <br /> i. Previously e----cavated soils contained excessive levels of total <br /> lead. Lead contaminated soils cannot be aerated. It is our <br /> recommendation that additional verification sampling be performed <br /> t',) determine the extent and amount of tetraethyl lead (soluble <br /> I e U CIL <br /> Residual contaminants remaining at the conclusion of the excavation <br /> Uttempt shall be addressed in the soil remediation plan. The soils <br /> :rerriediatior, plan should include a feasibility study for each option <br /> ProFicised. This plan can tie prepared in concert with the submittal <br /> of E---'clil results for the pending aeration activities. <br /> Provide detailed tcil:1 view and erose,-sectional diagrams of the <br /> Proposed eXcavation site. Calculate the total cubic yardage of all <br /> -1-le excavated soil. Include the location of original excavated soil <br /> cif" c-liacl,"ayfl. 'Zn'tock-piled soils --hall be stored so that vapor <br /> L-rnis -.'ions and dus;t controls are restricted. <br /> RE-fer to Appendix A of Tri-Regional Board Recommendations for <br /> Minimum Laboratory Analysis requirements. Both the Tri-Regional <br /> j'1 <br /> R�cornmeridatiorjs (enclosed) and LUFT Manual should be used in <br /> Preparing wor-krilans and subsequent assessment reports. <br /> A Division of San Joaquin County Health Care Services <br />