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'� • • • <br /> � <br /> Lancaster Laboratories Page 1 of 2 <br /> Where quality is a saence <br /> Quality Control Summary <br /> Client Name Chevron Products Company Group Number 803061 <br /> Reported 04/16/02 at 05 42 PM <br /> Laboratory Compliance Quality Control <br /> - <br /> - - Blank Blank - Report ----LCS - LCSD- - LCS/LCSD - - <br /> Analysis Name Result MDL Units %REC %REC Limits RPD RPD MaX <br /> Batch number 02099A56A sample number(s) 3801238-3801241 <br /> Benzene N D 0 5 ug/l 97 97 80-118 v1 30 <br /> Toluene N D 0 5 ug/1 99 98 82-119 1 30 <br /> Ethylbenzene N D 0 5 ug/l 99 99 81-119 1 30 <br /> Total Xylenes N D 1 5 ug/l 100 99 82-120 1 30 <br /> Methyl tert-Butyl Ether N D 2 5 ug/l 97 98 79-127 2 30 <br /> TPH-GRO - Waters N D 50 ug/l 94 94 76-126 0 30 <br /> Batch number 021000018A Sample number(s) 3801239-3801241 <br /> Methanol (by Direct Infection) N D 1000 ug/1 92 64-130 <br /> Batch number P021003AB Sample number(s) 3801239-3801241 <br /> Ethanol N D 500 ug/1 90 94-139 <br /> Methyl t-butyl ether N D 2 ug/l 88 77-127 <br /> di-Isopropyl ether _ N A -- 2 ug/1 87 79-125 <br /> Ethyl t-butyl ether N D 2 ug/1 88 74-120 <br /> t-Amyl methyl ether N D 2 ug/l 86 71-114 <br /> t--Butyl alcohol N D 100 ug/1 80 59-139 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP DUP <br /> RPD <br /> Analysis Name %REC %REC L3.mits RPD MAIC Cone Cone RPD Max <br /> Batch number 02099A56A Sample number(s) 3801238-3801241 <br /> ---Benzene 108 77-131 <br /> Toluene--- 111 80=128— ----— -- <br /> Ethylbenzene 113 76-132 <br /> Xylenes------—_—=113 -- -- -=76-132=--- - — -- -_ — -�-- - — - - —- - — <br /> Methyl tent-Butyl Ether (2) 61-144 <br /> TPH-GRO - Waters 100 74-132 <br /> Batch number 021000018A Sample number(s) 3801239-3801241 <br /> Methanol (by Direct In}ection) 96 96 58-137 0 20 <br /> Batch number P021003AB Sample number(s) 3801239-3801241 <br /> Ethanol 81 85 70-130 4 30 <br /> Methyl t-butyl ether 89 87 69-134 2 30 <br /> di-Isopropyl ether 90 90 68-133 0 30 <br /> Ethyl t-butyl ether 90 88 73-123 2 30 <br /> t-Amyl methyl ether 88 87 69-118 1 30 <br /> t-Butyl alcohol 80 82 51-148 3 30 <br /> Surrogate Quality Control <br /> *-Outside of speclficatlon . <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 /> Lancaster Laboratories Enc <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 2691 2216 Rev 9/1�l00 <br />