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Pace Analytical Services, Inc <br /> 900 Gemini Avenue <br /> ace Analytical' Houston, TX 77058 <br /> www pacelabs cam QUALITY CONTROL DATA PhFax 28148846281488 6 <br /> Lab Project Number 8522556 <br /> Client Project ID BP Site# 11193 <br /> QC Batch 56377 Analysis Method EPA 8021 <br /> QC Batch Method see analytical meth Analysis Description SW8021 Aromatics Water <br /> Associated Lab Samples 851704488 851704489 851704490 851704491 851704492 <br /> 851704493 851704494 851704496 851704497 851704498 <br /> METHOD BLANK 851705423 <br /> Associated Lab Samples 851704488 851704489 851704490 851704491 851704492 851704493 851704494 <br /> 851704496 851704497 851704498 <br /> Blank Reporting <br /> Parameter Units Result Limit Footnotes <br /> Benzene ug/l NO 0 500 <br /> Ethylbenzene ug/1 NO 0 500 <br /> Toluene ug/l NO 0 500 <br /> Xylene (Total) ug/l NO 1 50 <br /> Methyl tert butyl ether ug/l NO 0 500 <br /> 1 4 Difluorobenzene (S) t 98 <br /> 4 Bromofluorobenzene (S) X 105 <br /> a <br /> LABORATORY CONTROL SAMPLE 851705424 <br /> Spike LCS LCS <br /> Parameter Units Conc Result t Rec Footnotes <br /> Benzene ug/l 50 51 68 103 <br /> Ethyl benzene ug/l 50 53 60 107 <br /> Toluene ug/l 50 51 76 104 <br /> Xylene (Total) ug/l 100 106 9 107 <br /> Methyl tert butyl ether ug/l 50 55 17 110 <br /> 1 4 Difluorobenzene (S) 101 <br /> 4 Bromofluorobenzene (S) 106 <br /> MATRIX SPIKE & MATRIX SPIKE DUPLICATE 851705425 851705426 <br /> 851704491 Spike MS MSD MS MSD <br /> Parameter Units Result Conc Result Result X Rec t Rec RPD Footnotes <br /> Benzene ug/l 0 1348 50 00 57 66 57 17 115 114 1 <br /> Ethylbenzene ug/l 0 2019 50 00 60 04 59 45 120 118 1 <br /> Date 08/08/01 Page 12 <br /> 40 REPORT OF LABORATORY ANALYSIS <br /> This report shall not be reproduced except in full, <br /> Nithout the written consent of Pace Analytical Services, Inc <br /> hekk_ <br />