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Lancaster <br /> 1 Laboratories Analysis Repo' rt <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17505-2425•717-656-2304 Fax:717-6,56-2681•www.lancastertabs.com <br /> Page,1 of 2 <br /> Quality Control Summary <br /> Client Name: ChevronTexaco Group Number: 905929 <br /> Reported: 08/09/04 at 10:46 AM s e t <br /> jMatrix QC may not be reported if site-specifc QC samples were not R <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 f <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LC5D LCS/LCSD i <br /> { Analysis Name Result NIDL Units $RSC $REC Limits RPD ,! APD 'Max <br /> Batch number: 042150023A Sample number(s) : 4321323-4321325 <br /> 4 TPH - DRO CA LUFT (Waters) N.A. 50. ug/1 96 76 61-126 23* ; 2o <br /> p <br /> Batch number: 04215A16A Sample number(s) : 4321322-4321325 <br /> { TPH-GRO - Waters N.D. 50. ug/l 96 98 70-130 2 30 .; <br /> Batch number: Z042171AA Sample number(s) : 4321322-4321325 <br /> Methyl Tertiary Butyl Ether N.D- 2. ug/l J 114 77-127 <br /> ( Benzene N.D. .5 u9/1 97 85-117 x <br /> Toluene N.D. .5 ug/1 93 85-115 ! <br /> Ethylbenzene N.D- .5 ug/l 93 82-119 , <br /> {{ ,( Xylene (Total) N.D. 5- ug/l 92 83-113 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> j Analysis Name = SREC %REC Limits RPD MAXConc Conc RPD .i Max - <br /> Batch number: 04215A16A Sample number(s) e 4321322-4321325 <br /> TPH-GRO - Waters 63 63-154 <br /> `i <br /> Batch number: Z042171AA Sample number(s) ; 4321322=4321325 <br /> Methyl Tertiary Butyl Ether 111 117 69-134 2 30 <br /> Benzene 104 110 83-128 2 30 <br /> 1, Toluene 99 100 83-127 30 <br /> Ethylbenzene 105 , 107 82-129 1 30 <br /> Xylene (Total) 37 98 82-130 1 30 <br /> i Surrogate Quality Control <br /> } Analysis Name: TPH - DRO CA LUFT (Waters) <br /> Batch number: 042150023A <br /> Orthoterphenyl <br /> 4321323 75 <br /> ` 4321324 92 <br /> ' 4321325 80 <br /> ,t Blank 83 <br /> LCS 126 <br /> c <br /> *-Outside of specification ! r <br /> {l) The result for one or both determinations was less than five times the LOQ. ;f <br /> (2) The background result was more than four times the spike added. <br /> J <br />