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Lancasterort <br /> Laboratories �4 n a I ys is Report <br /> *425 Now Holland Pike PO Box 12425 Lancaster PA 176052425+717 656 2300 Fax 717 656-2681•www lanCasterlabs com <br /> Page 1 of 3 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 882114 <br /> Reported 01/29/04 at 05 14 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Unita REC %REC Limits RPD RPP Max <br /> Batch number 04021A08E Sample number(s) 4202390-4202391 <br /> TPH-GRO - Waters N D 50 ug/l 123 70-130 <br /> Batch number 040220009A Sample number(s) 4202391 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/l 83 85 61-126 3 20 <br /> Batch number 040260006A Sample number(s) 4202391 <br /> Methanol (by Direct InDection) N D 200 ug/l 104 78-114 <br /> Batch number 040261848003 Sample number(s) 4202391 <br /> Lead N D 0 0093 mg/l 102 93-110 <br /> Batch number N040261AA Sample number(s) 4202390 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 103 77-127 <br /> Benzene N D 0 5 ug/l 103 85-117 <br /> Toluene N D 0 5 ug/l 100 85-115 <br /> Ethylbenzene N D 0 5 ug/1 101 82-119 <br /> Xylene (Total) N D 0 5 ug/1 100 84-120 <br /> Batch number N040263AB Sample number(s) 4202391 <br /> � <br /> anol N D 50 u9/1 71 46-145 <br /> hyl Tertiary Butyl Ether N D 0 5 ug/l 102 77-127 <br /> Isopropyl ether N D 0 5 ug/l 101 67-130 <br /> Ethyl t-butyl ether N D 0 5 ug/l 102 74-120 <br /> t-Amyl methyl ether N D 0 5 U9/1 100 79-113 <br /> t-Butyl alcohol N D 5 u9/1 67 57-141 <br /> Benzene N D 0 5 ug/1 100 85-117 <br /> Toluene N D 0 5 ug/l 97 85-115 <br /> Ethylbenzene N D 0 5 ug/l 96 82-119 <br /> Xylene (Total) N D 0 5 ug/l 96 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 04021A08E Sample number(s) 4202390-4202391 <br /> TPH-GRO - Waters 110 117 63-154 4 30 <br /> Batch number 040260006A Sample number(s) 4202391 <br /> Methanol (by Direct Infection) 104 104 73-117 0 20 <br /> Batch number 040261848003 Sample number(s) 4202391 <br /> Lead 100 101 87-118 1 20 N D N D 0 (1) 20 <br /> Batch number N040261AA Sample number{s) 4202390 <br /> Methyl Tertiary Butyl Ether 115 93 69-134 7 30 <br /> Benzene 112 101 83-126 10 30 <br /> Toluene 108 95 83-127 13 30 <br /> Ethylbenzene 107 96 82-129 11 30 <br /> Xylene (Total) 107 95 82-130 12 30 <br /> Batch number N040263AB Sample number(s) 4202391 <br /> *-Outside of Specification <br /> The result for ane or both determinations was less than five times the LOQ <br /> } The background result was more than four times the spike added <br />