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Pace Analytical Services, Inc <br /> 900 Geminf Avenue <br /> ace Analytical� Houston TX 77058 <br /> www pacelabs cam QUALITY CONTROL DATA Phone 281 488 1810 <br /> Fax 281 488 4661 <br /> l <br /> Lab Project Number 8521561 <br /> Client Project €D BP Site#11194 <br /> QC Batch 53350 QC Batch Method See analytical meth <br /> Analysis Method EPA 8021 Analysis Description SW8021 Aromatics Water <br /> Associated Lab Samples 851693825 851693827 851693828 <br /> METHOD BLANK 851694417 <br /> Associated Lab Samples <br /> 851693825 851693827 851693828 <br /> Method <br /> Blank <br /> Parameter Units Result PRL Footnotes <br /> Benzene ug/1 ND 0 5 <br /> Ethylbenzene ug/1 ND 0 5 <br /> Toluene ug/l ND 0 5 <br /> Xylene (Total) ug/l ND 1 5 <br /> Methyl tert butyl ether ug/l ND 0 5 <br /> 1 4 Difluorobenzene (S) X 97 <br /> 4 Bromofluarobenzene (S) % 102 <br /> • <br /> MATRIX SPIKE & MATRIX SPIKE DUPLICATE 851694419 851694420 Matrix Matrix Spike <br /> Spike Spike Spike Sp Dup Dup <br /> Parameter Units 851693828 Conc Result X Rec Result X Rec RPD Footnotes <br /> Benzene ug/l 0 50 00 37 74 76 36 75 74 3 <br /> Ethylbenzene ug/l 0 50 00 45 09 90 43 80 88 3 <br /> Toluene ug/1 0 4099 50 00 43 84 87 42 88 85 2 <br /> Xylene (Total) ug/l 0 1018 100 00 92 27 92 90 02 90 2 <br /> Methyl tert butyl ether ug/l 0 2145 50 00 44 08 88 43 36 86 2 <br /> 1 4 Difluorobenzene (S) 100 100 <br /> 4 Bromofluorobenzene (S) 103 304 <br /> LABORATORY CONTROL SAMPLE 851694418 <br /> Spike LCS Spike <br /> Parameter Units Conc Result X Rec Footnotes <br /> Benzene ug/l 50 44 80 90 <br /> Ethylbenzene ug/l 50 51 54 103 <br /> Toluene ug/l 50 49 18 98 <br /> Xylene (Total) ug/l 100 106 6 107 <br /> Date 06/05/01 Page 16 <br /> REPORT OF LABORATORY ANALYSIS <br /> This report shall not be reoroduceu except In full <br /> without the written consent of Pace Anaivtical Services Inc <br />