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n 11 � <br /> Lancaster.______ _ _ _ Analysis Report - <br /> Laboratories Y p <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 17605.2425•717-656-2300 Fax 717-656-2681 www lancasterlabs com <br /> Page 4 of 5 <br /> Quality Control Summary <br /> Client Name ChevronTexacO Group Number 965273 <br /> Reported 12/14/ 5 at 03 30 PM <br /> Sample Matrix Quality Control <br /> NS MSD MS/MSD RPD HYO DBP DUP Dup RPD <br /> Analysis Name %REC %RBC Limits RPD MAX Conc Conc RPD Maxw <br /> tert-Butylbenzene 103 105 76-128 2 30 <br /> 1,2,4-Trimethylbenzene 102 103 80-125 1 30 <br /> pec-Butylbenzene 104 105 73-129 0 30 <br /> p-Isopropyltoluene 106 105 72-128 i 30 <br /> 1,3-Dichlorobenzene 99 96 79-123 1 30 <br /> 1,4-Dichlorobenzene 99 97 81-122 2 30 <br /> n-Butylbenzene 102 103 66-131 1 30 <br /> 1,2-Dichlorobenzene 97 96 82-117 1 30 <br /> 1,2-Dibromo-3-chloropropane 101 100 52-137 1 30 <br /> 1,2,4-Trichlorobenzene 103 103 60-121 0 30 <br /> Hexachlorobutadiene 102 102 44-140 0 30 <br /> Naphthalene 108 108 50-124 0 30 <br /> 1,2,3-Trichlorobenzene 107 105 58-122 2 30 <br /> Acetone 86 87 12-153 2 30 <br /> Carbon Disulfide 101 104 77-155 3 30 <br /> 2-Butanone 94 96 42-140 2 30 <br /> trans-1,3-Dichloropropene 97 99 77-123 2 30 <br /> cis-1,3-Dichloropropene 97 97 80-126 0 30 <br /> 4-Methyl-2-pentanone 94 95 58-141 2 30 <br /> 2-Hexanone 93 96 44-140 3 30 <br /> 2-Chloroethyl Vinyl Ether 0* 0" 1-172 0 30 <br /> fteon 111 106 in- 723_1615 0 30 <br /> Batch number Z053052AA Sample number(s) 4635973,4635975-4635977 <br /> Methyl Tertiary Butyl Ether 110 110 69-134 1 30 <br /> Benzene 92 94 83-128 2 30 <br /> Toluene -- — - 97 98_ _ 83-127 _ _2 ___30 <br /> Ethylbenzene 99 100 82-129 w 2 �3o- <br /> Xylene (Total) _ - 97 101 _82-130 3 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-DRO CALUFT(Waters) <br /> Batch number OS3040012A <br /> Orthoterphenyl <br /> 4635974 88 <br /> 4635975 93 <br /> 4635976 84 <br /> 4635977 87 <br /> Blank 95 <br /> LCS - 105 <br /> LCSD 109 <br /> Limits 59-131 <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 05304A08A <br /> Trifluorotoluene-F <br /> 4635973 105 <br /> Blank 106 <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 />