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Sequoia 404 N WiLane <br /> Walnut Creek CAA 94598 <br /> (925)988-9600 <br /> IQF Analytical FAX (925)988-9673 <br /> IT Corporation Project Sears <br /> i <br /> 4005 Port Chicago Hwy Project Number Sears-Stockton Reported ' <br /> Concord CA,94520 Project Manager Dave Poley 24 Nov-99 15 23 <br /> - Volatile Organic Compounds by EPA Method 8010B - Quality Control e <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> ,�,l�jyte Result Lurut Units Level Result °/uREC Lints RPD Unit Notes <br /> Batch 9K18007 Prepared 18-Nov-99 Using EPA 5030B [MeOH] <br /> LCS(9K18007-BS1) , <br /> Chlorobenzene 100 0 023 mg/kg 100 100 70-130 <br /> 1,1-Duchloroethene 120 0 025 100 120 65-135 <br /> Trichloroethene 120 0 025 100 120 70-130 <br /> Surrogate I-Chloro-2 fluorobenzem 0 380 0 500 760 50-150 <br /> Surrogate 4-Bromolluorobenzene 0 500 0 500 100 50-150 ' <br /> Matnx Spike(9K18007-MSI) Source W911214-01 <br /> Chlorobenzene 105 0 025 mg/kg 100 ND 105 60-140 <br /> 1,1-Dtchloroethene 1 10 0 025 100 ND 110 60-140 ' <br /> Trichloroethene 120 0 025 100 ND 120 60-140 <br /> I <br /> Surrogate 1-Chloro-2fluorobenzene 0475 0500 -950 50-150 <br /> Surrogate 4-Bromofluorobemene 0 550 0 500 110 50-150 <br /> Matrix Spike Dup(9K18007-MSD1) Source W911214-01 <br /> Chlorobenzene 1 00 0 025 mg/kg 100 ND 100 60-140 488 25 <br /> —1,I-Dichloroethene 0 950 0 025 1 00 ND-----95 0-----60-140-14 6 25 <br /> Trichloroethene 1 10 0 025 100 ND 110 60-140 870 25 <br /> = Surrogate-1-Chloro-2Jluoroberaene— ___04050500 X81 0 50-150—-�� - -- <br /> Surrogate 4 Bromofluorobetuene 0 500 �" 0 500 100 50-150 , <br /> Sequoia Analytical-Walnut Creek The results un thrs report apply to tie samples anabaed u n accordewce with the c)im,"o <br /> custo�document Thus analytical report must be reproduced in its enri rell <br /> imp a Sharma,Project manager Page 38 of 46 <br />