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canister. The duplicate samples, their primary counterparts, and the QA/QC samples will be collected in <br /> certified clean 6-liter Summa canisters with certified clean sampling apparatuses (filters, splitters, and <br /> flow meters). The remaining soil gas samples will be collected in certified clean 6-liter Summa canisters. <br /> The samples will be analyzed for volatile organic compounds by EPA Method TO-15. Soil gas sampling <br /> will be conducted in accordance with the DTSC Advisory—Active Soil Gas Investigations dated January <br /> 28, 2003. Groundwater samples will be collected in preserved glass containers and analyzed for volatile <br /> organic compounds by EPA Method 8260, to include 1,3-butadiene at a reporting limit of lug/L. Severn <br /> Trent Laboratories(STL) Chicago will conduct the groundwater analyses. <br /> The soil gas fieldwork will begin as soon as possible upon DTSC approval of this scope, and is tentatively <br /> scheduled for the week of December 27, 2004. DTSC will be advised of the final fieldwork dates as soon <br /> as activities are scheduled. The site's neighbors will be notified of the fieldwork at least seven business <br /> days before fieldwork commences. Results of the additional soil gas investigation will be submitted in an <br /> SSI addendum. Should you have any questions or concerns, please feel free to contact us at 209-234- <br /> 0518. <br /> Respectfully submitted, <br /> CONDOR EARTH TECHNOLOGIES, INC. <br /> eiA <br /> Alexander B. Dewitt, R.G. Je king <br /> E. <br /> Associate Geologist E g:inrvices Manager ALO <br /> AttachmentJ/ O% <br /> ur � <br /> cc: Gabriele Windgasse,DTSC Human and Ecological Risk Division cle ALtsANOEI'i B.ORVITi <br /> Steve Breakfield, Stockton Unified School District No.7502 <br /> /3i" <br /> Wendy King, Stockton Unified School District Expires 1) y <br /> David Wood, Environmental Consultant, SUSD K"+ <br /> "9T @- <br /> F 0 <br /> P:\3000_pgU638 CSUS Stockton Campus Elementary School(SUSD)\3638F Pittman School PEAVSSI\t.ozano l 2-07-04.doc <br /> 4M <br /> i� CONDOR <br />