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® ° — • • <br /> t <br /> Lancaster <br /> Laboratories <br /> Page 3 of 6 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 841528 <br /> Reported 02/27/03 at 06 53 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC $REC Limits RPA RPD Max <br /> Dibromochloromethane N D 1 7E-g-—/1 96 78-119 <br /> Chlorobenzene N D 8 ug/l 102 85-115 <br /> Ethylbenzene N D 5 ug/1 104 82-119 <br /> m+p-Xylene N D 5 ug/l 103 84-120 <br /> o-Xylene N D 5 ug/l 102 84-120 <br /> Bromoform N D 1 ug/1 92 63-122 <br /> 1,1,2,2-Tetrachloroethane N D 1 ug/1 102 72-119 <br /> 1,3-Dichlorobenzene N D 1 ug/l 103 82-119 <br /> 1,4-Dichlorobenzene N D 1 ug/1 101 84-116 <br /> 1,2-Dichlorobenzene N D 1 ug/1 103 84-117 <br /> trans-1,3-Dichloropropene N D 1 ug/1 99 79-114 <br /> cis-1,3-Dichloropropene N D 1 ug/l 97 78-114 <br /> Freon 113 N D 2 ug/l 107 78-139 <br /> Batch number P030521AA Sample number(s) 3996001,3996004-3996005 <br /> Methyl Tertiary Butyl Ether N D 5 ug/l 109 77-127 <br /> Benzene N D 5 u9/1 106 85-117 <br /> Toluene N D 5 ug/l 103 85-115 <br /> Ethylbenzene N D 5 ug/l 104 82-119 <br /> Xylene (Total) N D 5 u9/1 103 84-120 <br /> rtch number P030531AA Sample number(s) 3996005 <br /> enzene N D 5 ug/l 106 85-117 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> RPD <br /> Analvsis_Name %REC $REC Limits RPD MAX Conc Cone RPD Max <br /> Batch number 03045A07C Sample number(s) 3996001 <br /> TPH-GRO - Waters 135* 70-130 <br /> Batch number 03045A07D Sample number(s) 3996002,3996004-3996005 <br /> TPH-GRO - Waters 135* 70-130 <br /> Batch number 03049112601A Sample number(s) 3996002 <br /> TRPH 418 1 N D N D 200* (1) 34 <br /> Batch number 030531848001 Sample number(s) 3996003 <br /> Cadmium 102 103 78-121 2 20 N D N D 0 (1) 20 <br /> Chromium 102 103 80-119 1 20 N D N D 0 (1) 20 <br /> Lead 101 103 75-125 1 20 N D N D 0 (1) 20 <br /> Nickel 100 101 80-117 1 20 0 0020 0 0024 17 (1) 20 <br /> Zinc 99 101 81-120 2 20 0 0063 0 0069 8 (1) 20 <br /> Batch number N030371AB Sample number(s) 3996002 <br /> Methyl Tertiary Butyl Ether 100 103 69-134 2 30 <br /> Chloromethane 101 97 66-142 4 30 <br /> Vinyl Chloride 105 102 64-148 3 30 <br /> Bromomethane 75 71 48-132 5 30 <br /> Chloroethane 89 83 58-136 7 30 <br /> Trichlorofluoromethane 105 99 64-154 5 30 <br /> 1,1-Dzchloroethene 121 120 78-146 1 30 <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 spike added <br /> Lancaster Laboratories,Inc <br /> M E M B E R 2A25 New Holland Pike <br /> PO Box 12425 <br /> Lancaster PA 17605-2425 - } <br /> -,�-r FrF��nn C.... �1'!FFF 9FA'1 •••.• •• •� I <br />