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Pace/analytical Services, Inc <br /> 900 Gemini Avenue <br /> E ace Analytical m Houston, 7X 77058 <br /> Phone 281488 1810 <br /> WWW pacelabs cam QUALITY CONTROL DATA Fax 2614884660 <br /> Lab Project Number 8527254 <br /> Client Project ID Blain Tech Site 11194 <br /> QC Batch 68554 Analysis Method EPA 8021 <br /> QC Batch Method See analytical method Analysis Description SW8021 Aromatics Water <br /> Associated Lab Samples 851750377 851750378 851750379 851750380 851750381 <br /> 851750382 851750383 851750384 851750385 851750386 <br /> 851750387 851750388 851750389 851750390 <br /> ,14ETHOD BLANK 851750478 <br /> Associated Lab Samples 851750377 851750378 851750379 851750380 851750381 8517503132 851750383 <br /> 851750384 851750385 851750386 851750387 851750388 851750389 851750390 <br /> Blank Reporting <br /> Parameter Units Result Limit Footnotes <br /> Benzene ug/l ND 0 500 <br /> Ethyl benzene ug/l ND 0 500 <br /> Toluene ug/l ND 0 500 <br /> Xylene (Total) ug/l ND 1 50 <br /> Methyl tert-butyl ether ug/1 ND 0 500 • <br /> 1 4 Difluorobenzene (S) X 98 <br /> 4-Bromofluorobenzene (S) X 95 <br /> LABORATORY CONTROL SAMPLE 851750479 <br /> Spike LCS LCS <br /> Parameter Units Conc Result % Rec Footnotes <br /> Benzene ug/l 50 43 58 87 <br /> Ethylbenzene ug/l 50 47 62 95 <br /> Toluene ug/1 50 45 62 91 <br /> Xylene (Total) ug/l 100 95 02 95 <br /> Methyl tert butyl ether ug/l 50 46 07 92 <br /> 1 4 Difluorobenzene (S) 100 <br /> 4 Bromofluorobenzene (S) 98 <br /> MATRIX SPIKE & MATRIX SPIKE DUPLICATE 851750480 851750481 <br /> 851750377 Spike MS MSD MS MSD <br /> Parameter Units Result Conc Result Result % Rec X Rec RPD Footnotes <br /> Benzene ug/l 0 50 00 46 00 45 69 92 91 1 <br /> Date 05/03/02 Page 16 <br /> • <br /> REPORT OF LABORATORY ANALYSIS <br /> This report shall not be reproduced,except in full, <br /> without the written consent of Pace Analytical Services, Inc <br /> tiN �CCpAO <br />