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s � <br /> Pace Analytical1ervices;krc <br /> r <br /> 800 Gemini Avenue <br /> ace Anal ical <br /> 1/f Houston, TX 77058 <br /> y QUALITY CONTROL DATA <br /> Phone 281488 18 10 <br /> WWW pacelabs com Fax 2814864661* <br /> - Lab Project Number 8524929 <br /> x Client Project ID BP Site 11191/852-1709 4 <br /> QC Batch 614�3.6 Analysis Method EPA 8021 <br /> QC Batch Method EPA 'l Analysis Description BTEX Soil <br /> Associated Lab Samp,les 851723611 851723612 851723613 851723614 851723615 <br /> 851723616 851723617 851723618 <br /> METHOD�BFI.ANK 851723717 — <br /> Associated Lab Samples 851723611 851723612 851723613 851723614 851723615 851723616 851723617 <br /> 851723618 <br /> Blank Reporting <br /> Parameter Units Result Limit Footnotes <br /> Benzene ug/kg ND 5 0 <br /> Ethylbenzene ug/kg ND 5 0 <br /> Toluene ug/kg ND 5 0 <br /> Xylene (Total) ug/kg ND 5 0 <br /> Methyl-tert butyl ether ug/kg ND 5 0 <br /> 4-Bromofluorobenzene (S) X 96 <br /> LABORATORY CONTROL SAMPLE & LCSD 851723718 851723719 <br /> Spike LCS LCSD LCS LCSD <br /> Parameter Units Conc Result Result X Rec X Rec RPD Footnotes <br /> Benzene ug/kg 50 44 73 46 72 90 93 4 <br /> Ethylbenzene ug/kg 50 55 61 57 19 111 114 3 <br /> Toluene ug/kg 50 50 81 52 71 102 105 4 <br /> Xylene (Total) ug/kg 100 113 3 115 2 113 115 2 <br /> Methyl tert-butyl ether ug/kg 50 41 11 44 33 82 89 8 <br /> 1 4-Difluorobenzene (S) 99 99 <br /> 4-Bromafluorobenzene (S) 101 100 <br /> Date 01/03/02 Page 13 <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 /> 1M �CCOA <br />