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Pace Analytical Services, Inc <br /> ace Analytical� 900 Gemini Avenue <br /> Houston, TX 77058 <br /> www pacelabs com QUALITY CONTROL DATA Phone 281488 1810 <br /> ! Fax 281488 4661 <br /> f <br /> Lab Project Number 8524201 <br /> Client Project ID BP Site#11194 <br /> QC Batch 59982 Analysis Method EPA 8021 <br /> QC Batch Method See analytical meth Analysis Description SW8021 Aromatics Water <br /> Associated Lab Samples 851718307 851718308 851718309 851718310 851718311 <br /> 851718313 851718314 851718315 851718316 851718317 <br /> 851718318 851718319 851718320 <br /> METHOD BLANK 851718477 <br /> Associated Lab Samples 851718307 851718308 851718309 851718310 851718311 851718313 851718314 <br /> 851718315 851718316 851718317 851718318 851718319 851718320 <br /> Blank Reporting <br /> Parameter Units Result Limit Footnotes <br /> Benzene ug/l ND 0 500 <br /> Ethylbenzene ug/1 ND 0 500 <br /> Toluene ug/1 ND 0 500 <br /> Xylene (Total) ug/1 ND 1 50 <br /> Methyl tent butyl ether ug/l ND 0 500 <br /> 1 4-Difluorobenzene (S) % 98 <br /> 4 Bromofluorobenzene (S) % 101 <br /> LABORATORY CONTROL SAMPLE 85171847B <br /> Spike LCS LCS <br /> Parameter Units Conc Result % Rec Footnotes <br /> Benzene ug/l 50 53 85 108 <br /> Ethylbenzene ug/l 50 52 51 105 <br /> Toluene ug/l 50 51 64 103 <br /> Xylene (Total) ug/l 100 104 4 104 <br /> Methyl tert butyl ether ug/l 50 53 67 107 <br /> 1 4-Dlfluorobenzene (S) 100 <br /> 4 Bromofluorobenzene (S) 103 <br /> MATRIX SPIKE & MATRIX SPIKE DUPLICATE 851718479 851718480 <br /> 851718308 Spike MS MSD MS MSD <br /> Parameter Units Result Conc Result Result X Rec % Rec RPD Footnotes <br /> Benzene ug/1 0 50 00 57 28 56 46 115 113 1 <br /> Date 11/07/01 Page 16 <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 /> ,Y AC COA <br /> 74 <br />