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,?aceAnalytical" <br />www.pacelaba.com <br />Project: LUPTON LAKES DMG <br />Pace Project No.: 6039595 <br />QC Batch: GCV/2530 <br />QC Batch Method: EPA 8021 <br />Associated Lab Samples: 6039595001, 6039595002 <br />QUALITY CONTROL DATA <br />Analysis Method: EPA 8021 <br />Analysis Description: 8021 GCV BTEX Only <br />METHOD BLANK: 321826 <br />Associated Lab Samples: 6039595001, 6039595002 <br /> Blank Reporting <br />Parameter Units Result Limit Qualifiers <br />Benzene ug/L ND 2.0 <br />Ethylbenzene ug/L ND 2.0 <br />Toluene ug/L ND 2.0 <br />Xylene (Total) ug/L ND 5.0 <br />a,a,a-Trifluorotoluene (S) % 101 85-121 <br />LABORATORY CONTROL SAMPLE: 321827 <br /> Spike LCS LCS % Rec <br />Parameter Units Conc. Result % Rec Limits <br />Benzene ug/L 20 18.5 92 79-119 <br />Ethylbenzene ug/L 20 19.9 99 83-122 <br />Toluene ug/L 20 19.1 95 82-121 <br />Xylene (Total) ug/L 60 61.1 102 87-115 <br />a,a,a-Trifluorotoluene (S) % 98 85-121 <br />MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 321828 <br /> MS <br /> 6039464001 Spike <br />Parameter Units Result Conc. <br />Benzene ug/L ND 20 <br />Ethylbenzene ug/L ND 20 <br />Toluene ug/L ND 20 <br />Xylene (Total) ug/L ND 60 <br />a,a,a-Trifluorotoluene (S) % <br />Date: 05/14/2008 01:30 PM <br />I <br />Pace Analytical Services, Inc. <br />• <br />9608 Loiret E;Ivd. • <br />Lenexa, KS 66219 <br />(913)599-5665 • <br /> • <br /> • <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> • <br /> <br /> <br />Qualifiers • <br /> <br /> <br /> <br /> <br /> 321829 • <br />MSD • <br />Spike MS MSD MS MSD % Rec Max <br />Conc. Result Result % Rec % Rec Limits RPD RPD Qual • <br />20 16.8 16.8 84 84 51-131 0 20 • <br />20 18.8 18.4 94 92 60-133 2 20 <br />20 17.6 17.3 85 83 65-125 2 17 • <br />60 58.2 57.0 95 93 70-124 2 20 <br /> 95 98 85-121 • <br />REPORT OF LABORATORY ANALYSIS <br />This report shall not be reproduced, except in full, <br />without the written o:)nsent of Pace Analytical Services, Inc.. <br />Ayplc?a^a.?+ 4 <br />Page 7 Df 9 • <br />• <br />• <br />•