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r � <br /> Lancaster r <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605.2425•717.656.2300 Fax717-656-2681•W WW.lancasteriabs.com <br /> Y Page 1 of 2 <br /> Quality Control Summary , , . <br /> Client Name: ChevronTexaco Group Number: 932293 <br /> Reported: 02/24/05 at 08 :49 PM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted. In.these situations,to demonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS �' LCSD LCS/LCSD # <br /> Analysis Name Result MDL Units gaREC %REC Limits RPD RPD Max <br /> Batch number: 05049AICA Sample number(s) 4467235-4467238 s i� <br /> TPH-GRO - Waters N.D. 50. ug/l 103 105 70-130 2 30 <br /> Batch number: Z050541AA Sample number(s) 4467235-4467238 <br /> Ethanol N.D. 50. ug/l 117 46-145 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 u9/1 89 77-127 <br /> di-Isopropyl ether N.A. 0.5 ug/i 90 67-130 <br /> Ethyl t-butyl ether N.D. 0.5 ug/1 90 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 91 .79-113 <br /> t-Butyl alcohol N.D. 5. ug/l 90 57-141 ,t <br /> Benzene N.D. 0.5 ug/l 91 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 92 77-132 ; J} <br /> Toluene N.D. 0.5 ug/l 91 85-1151' <br /> 1,2-Dibromoethane N.D. 0.5 ug/l B9 81-114 M <br /> Ethylbenzene N.D. 0.5 ug/l 93 82-119 <br /> Xylene (Total) N.D. 0.5 ug/1 93 83-113 s <br /> • 'r I <br /> i <br /> Sample Matrix Quality Control <br /> ' MS MSD MS/MSD' RPD BICa DIIP DIIP - Dup RPD <br /> Anal�y@is Name %REC %REC Limits RPD MAX Conc conc . RPD Max <br /> Batch number: 05049A16A Sample number(s) : 4467235-4467238 <br /> TPH-GRO - Waters 118 63-154 <br /> Batch number: 2050541AA Sample number(s) : 4467235-4467238 y <br /> Ethanol 94 98 33-153 4 30 <br /> Methyl Tertiary Butyl Ether 90 90 69-134 1 30 <br /> di-Isopropyl ether 93 93 75-130 1 30 <br /> Ethyl t-butyl ether 93 93 78-119 0 30 <br /> t-Amyl methyl ether 91 90 77-117 0 30 <br /> t-Butyl alcohol 87 90 51-147 3 30 1 <br /> Benzene 97 96 83-128 1 30 <br /> 1,2-Dichloroethane 95 95 73-136 0 30 <br /> Toluene 97 97 83-127 0 30 f <br /> 1,2-Dibromoethane 90 91 78-120 1 30 } `� <br /> ,Ethylbenzene 99 99 82-129 0 30 <br /> Xylene (Total) - 98 97 82-130 1 30 <br /> *-Outside of specification r . <br /> (1) The result for one or both determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br /> 1 <br /> I <br />