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i <br /> Lancaster4naIy5-�!s Report <br /> MEN <br /> 2425 New Holland Pike PO Sox 12425 Lancaster PA 17605-2425•717 656-2300 Fax 17-656-2681•www lancasterlabs com <br /> Page 1 of 5 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 965273 <br /> Reported 11/10/05 at 03 30 PM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted In these situations,to demonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method <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 /> I <br /> Batch number 053040012A Sample number(s) 4635974-46y5977 <br /> TPH-DRO CALUFT(Waters) N D 50 ug/1 4 B4 a8 59-131 4 20 <br /> Batch number 05304AOBA Sample number(s) 4635973 1 <br /> TPH-GRO - Waters N D 50 ug/1 . 109 112 70-130 3 30 <br /> Batch number 0530SAOSA Sample number(s) 4635974-46315977 <br /> TPH-GRO - Waters N D 50 u9/1 108 107 70-130 1 30 <br /> h number W053031AC Sample number(s) 4635974 <br /> nol N D 50 ug/l 99 30-155 <br /> hyl Tertiary Butyl Ether N D 0 5 u9/1 95 77-127 <br /> di-Isopropyl ether N D 0 5 ug/1 90 67-130 ' <br /> Ethyl t-butyl ether N D 0 5 ug/1 91 '74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 92 79-113 <br /> t-Butyl alcohol N D 5 ug/1 99 60-133 <br /> Dichlorodifluoromethane N D 2 ug/1 75 54-166 <br /> Chloromethane N D 1 ug/1 74 66-139 <br /> Vinyl Chloride N D 1 ug/1 74 71-126 <br /> Bromomethane N D 1 ug/1 88 62-131 <br /> Chloroethane N D 1 ug/1 82 67-127 <br /> Trichlorofluoromethane N D 2 ug/l 89 70-148 <br /> 1,1-Dichloroethene N D 0 8 ug/l 97 79-130 <br /> Methylene Chloride N D 2 ug/1 91 85-120 <br /> trans-1,2-Dichloroethene N D 0 8 ug/l 95 83-117 <br /> 1,1-Dichloroethane N D 1 ug/i 94 63-127 <br /> 2,2-Dichloropropane N D 1 ug/l 99 74-130 <br /> cis-1,2-Dichloroethene N D 0 B u9/1 95 84-117 <br /> Chloroform N D 0 8 ug/l 98 86-124 <br /> Bromochloromethane N D 1 ug/l 95 56-131 <br /> 1,1,1-Trichloroethane N D 0 B u9/1 99 83-127 <br /> Carbon Tetrachloride N D 1 ug/1 99 77-130 <br /> 1,1-Dichloropropene N D 1 ug/l 94 84-116 <br /> Benzene N D 0 5 ug/1 95 85-117 <br /> 1,2-Dichloroethane N D 0 5 ug/l 102 77-132 <br /> Trichloroethene N D 1 ug/1 95 87-117 <br /> 1,2-Dichloropropane N D 1 ug/l 94 80-117 <br /> Dibromomethane N D 1 ug/1 97 87-117 <br /> Bromodichloromethane N D 1 ug/1 101 83-121 <br /> Toluene N D 0 5 ug/l 93 85-115 <br /> 1,1,2-Trichloroethane N D 0 8 ug/i 93 86-113 <br /> Tetrachloroethene N D 0 B ug/l 93 74-125 <br /> 1,3-Dichloropropane N D 1 ug/1 94 84-119 <br /> Dibromochloromethane N D 1 ug/1 99 78-119 <br /> *-Outside of specification <br /> 1) The result for one or both determinations was less than five times the LOQ <br /> The background result was more than four times the spike added <br /> I <br /> I <br /> I <br />