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Analysis • • <br /> Lancaster Laboratories Page a of 2 <br /> Merequalr is a science <br /> 0 <br /> ua1 ty Control Summary <br /> Client Name: ChevronTexaco Group _Number: 816685 <br /> Reported 08/08/02 at 07 58 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD r <br /> Analysis Name Result HDL Units &EC %RE Limits RPD RPD__Max <br /> Batch number 02210A56A Sample number(s) 3865251-3865254 <br /> TPH-GRO - Waters N D 5o ug/1 93 88 74-116 6 30 <br /> Batch number P022112AB Sample number(s) 3865251-3865252 <br /> Methyl t-butyl ether N D 2 ug/l 96 77-127 <br /> Benzene N D 5 ug/l 102 85-117 <br /> Toluene N D 5 ug/l 100 1 85-115 <br /> Ethylbenzene N D 5 ug/1 104 82-119 <br /> Xylene (Total) N D 5 ug/1 + 106 84-120 <br /> Batch number P022121AA Sample number(s) 3865253-3865254 <br /> Methyl t-butyl ether N D 2 ug/1 91 77-127 <br /> Benzene N D 5 ug/1 100 85-117 <br /> Toluene N D 5 ug/1 98 85-115 <br /> Ethylbenzene N D 5 ug/1 101 82-119 <br /> Xylene (Total) N D 5 ug/1 103 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKO DUP DUP Dup <br /> RPD <br /> Analysis Nam, %RR %REC Limier RPD NU Conc Conc RPD Max <br /> Batch number 02210ASGA Sample number(s) 3865251-3865254 <br /> TPH-GRO - Waters 100 74-132 <br /> r <br /> Batch number P022112AB Sample number(s) 3865251-3865252 <br /> Methyl t-butyl ether 95 94 69-134 1 30 <br /> Benzene 105 105 78-134 0 30 <br /> Toluene 104 103 83-127 0 30 <br /> Sthylbenzene 107 107 82-134 0 30 <br /> Xylene (Total) 109 110 82-130 0 30 <br /> Batch number P022121AA Sample number(s) 3865253-3665254 <br /> Methyl t-butyl ether 87 89 69-134 2 30 <br /> Benzene 103 103 78-134 0 30 <br /> Toluene 103 100 83-127 3 30 <br /> Ethylbenzene 106 103 82-134 2 30 - <br /> Xylene (Total) 108 105 82-130 3 30 <br /> Surrogate Quality Control <br />- - Analysis-Name TPH-GRO --Waters - <br /> Batch number 0221OA56A <br /> Trxfluorotoluene-F <br /> 3865251 87 <br /> 3865252 85 <br /> 3865253 86 <br /> 3865254 87 <br /> Blank 85 <br /> LCS 95 <br /> LCSD 92 <br /> Ms 101 <br /> *-Outside of specification <br /> (1) The result for one or both deternunatlons was fess than five times the LOQ <br /> (2) The background result was more than four times the spike added <br /> Lancaster Laboratories Inc <br /> MEMBER 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster PA 17605 2425 <br /> 717-656-2300 Fax 717 656 2681 2216 Rev 9111/00 <br />