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Sequoia 404 N Lane <br /> Walnut ' <br /> ® ut Creek,, CA CA 94598 <br /> Analytical (925988-9600 <br /> FAX(925})988-9673 <br /> I <br /> i <br /> IT Corporation Project Sears <br /> 4005 Port Chicago Hwy Project Number Sears-Stockton Reported <br /> I <br /> Concord CA,94520 Project Manager Dave Poley 24-Nov-99 15 23 <br /> J Diesel Hydrocarbons (C9-C24) and Motor Oil by DHS LUFT - Quality Control <br /> -Sequaa Analytical- Walnut-Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Lumt Notes <br /> Batch 9K17013 Prepared 17-Nov-99 Usmg EPA 3550A <br /> Blank(9K17013-BLKI) <br /> Diesel Range Hydrocarbons ND 10 mg/kg <br /> Motor Oil(C 16-C36) ND 10 " <br /> Surrogate n-Pentacosane 0 600 111 541 50-150 ' <br /> LCS(9K17013-11SI) <br /> Diesel Range Hydrocarbons 120 10 mg/kg 150 800 60-140 <br /> Surrogate n-Pentacosane 0 700 111 631 50-150 <br /> LCS Dup(9K17013-BSDI) ' <br /> Diesel Range Hydrocarbons 136 10 mg/kg 150 907 60-140 125 50 <br /> Surrogate n-Pentacosane 0 733 1 11 660 50-150 <br /> Matrix Spike(9K17013-MSI) Source W911390-09 <br /> Diesel Range Hydrocarbons 157 10 mg/kg 150 ND 105 50-150 <br /> Surrogate n-Pentacosane 0 756 111!1 681 50-150 <br /> —Matrix Spike Dup (9K17013-MSDI) — -Source-W911390-09 --- --- <br /> Diesel Range Hydrocarbons 157 10 mg/kg 150 ND 105 50-150 0 50 <br /> —=Surrogate n-Pentacosane D 756_____ III =681_----50-150--- __ <br /> Sequoia Analytical-Walnut Creek The results in ties report apply to the samples analyzed i n mcordance with the churn of <br /> 1 custody document Tins analytical report must be reproduced to its enhre� <br /> # ' <br /> n-Ep-lb Sharma,Project Manager Page 29 of 46 <br />