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Analysis Report <br /> Lancaster <br /> Laboratories <br /> Pagel of 2 <br /> Qualaty Control Summary <br /> Client Name ChevronTexaco Group Number 873178 <br /> Reported 11/04/03 at 02 09 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis_Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number 03305A07C Sample number(s) 4155623-4155624 <br /> TPH-GRO - Waters N D 50 ug/1 94 70-130 <br /> Batch number P033071AA Sample number(s) 4155623--4155624 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/1 96 77-127 <br /> di-Isopropyl ether N D 0 5 ug/1 92 74-125 <br /> Ethyl t-butyl ether N D 0 5 ug/1 90 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/1 96 79-113 <br /> t-Butyl alcohol N D 5 ug/1 94 53-147 <br /> Benzene N D 0 5 ug/1 96 85-117 <br /> 1,2-Dichloroethane N D 0 5 ug/1 93 77-132 <br /> Toluene N D 0 5 ug/l 96 85-115 <br /> 1,2-Dibromoethane N D D 5 ug/1 96 81-114 <br /> Ethylbenzene N D D 5 ug/1 96 82-119 <br /> Xylene (Total) N D 0 5 ug/1 99 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> RPD <br /> Anal sa.s Name %REC %REC L3=is RPD MAX Conc Conc RPD Max <br /> Batch number 03305A07C Sample number(s) 4155623-4155624 <br /> TPH-GRO - Waters 109 107 63-154 0 30 <br /> Batch number P033071AA Sample number(s) 4155623-4155624 <br /> Methyl Tertiary Butyl Ether 98 97 69-134 1 30 <br /> di-Isopropyl ether 96 95 75-130 0 30 <br /> Ethyl t-butyl ether 92 92 78-119 0 30 <br /> t-Amyl methyl ether 97 99 77-117 1 30 <br /> t-Butyl alcohol 89 89 44-150 0 30 <br /> Benzene 104 105 83-128 1 30 <br /> 1,2-Dichloroethane 99 97 73-136 3 30 <br /> Toluene 104 103 83-127 0 30 <br /> 1,2-Dibromoethane 97 97 78-120 0 30 <br /> Ethylbenzene 104 104 82-129 1 30 <br /> Xylene (Total) 106 105 82-130 1 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 03305A07C <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 2425 New Holland Pike <br /> PO Box 12425 <br /> ® Lancaster PA 17605 2425 <br /> 717 656 2300 Fax 777 656-2681 2216 Rev 3/10103 <br />