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A • " • • <br /> Lancaster Laboratories Pagel of2 <br /> Whew,JlDW.L%jjr�of Summary <br /> Client Name Chevron Products Company Group Number 794557 <br /> Reported 01/30/02 at 03.07 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL units %REC %REC La=ts RPD RPD Max <br /> Batch number 02O28A55 Sample number{s} 3764033-3764036 <br /> Benzene N D 0 5 ug/1 96 80-118 <br /> Toluene N D 0 5 ug/l 105 82-119 <br /> Ethylbenzene N D 0 5 ug/1 105 81-119 <br /> Total Xylenes N D 1 5 ug/l 105 62-120 <br /> Methyl tert-Butyl Ether N D 2 5 ug/l 96 79-127 <br /> TPH-GAO - waters N D 50 ug/1 116 76-126 <br /> Batch number V020251AC Sample number{s} 3764034-3764036 <br /> Ethanol N D 500 ug/1 105 44-139 <br /> Methyl t-butyl ether N D 2 ug/1 101 77-127 <br /> dx-Isopropyl ether N D 2 ug/1 101 74-125 <br /> Ethyl t-butyl ether N D 2 ug/1 102 74-120 <br /> t-Amyl methyl ether N D 2 ug/1 101 71-114 <br /> t-Butyl alcohol N D 100 ug/l 114 59-139 <br /> Sample Matrax Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> PPD <br /> Analysis Name $REC %REC Limits RPD MAX Conc Conc RPD <br /> Batch number 02028A55 Sample number{s} 3764033-3769036 <br /> Benzene 101 101 77-131 0 30 <br /> Toluene 108 109 80-128 1 30 <br /> Ethylbenzene 111 112 76-132 1 30 <br /> Total Xylenes 110 111 76-132 1 30 <br /> Methyl tert-Butyl Ether 95 96 61-144 1 30 <br /> TPH-GRO - Waters 106 118 74-132 9 20 <br /> Batch number V020251AC Sample number(s) 3764034-3764036 <br /> Ethanol 90 75 70-130 17 30 <br /> Methyl t-butyl ether 64* 72 69-134 7 30 <br /> dz-Isopropyl ether 69 76 68-133 10 30 <br /> Ethyl t-butyl ether 66* 73 73-123 10 30 <br /> t-Amyl methyl ether 65* 73 69-118 11 30 <br /> t-Butyl alcohol 79 87 51-148 9 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 0202BA55 <br /> Trzfluorotoluene-F Trifluorotoluene-P <br /> 3764033 93 85 <br /> 3764034 93 83 <br /> *-Outside of specification <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 spice added 0 <br /> Lancaster Laboratories Inc <br /> M E M B E R 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 />