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Lancaster <br /> r Laboratories Analysis Repot <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 17605-2425•717-656 2300 Fax 717 656-2681•www Eancasteriabs com <br /> Page 1 of 9 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 877375 <br /> Reported 12/23/03 at 02 19 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Unita 96REC %RHC Limits RPA RPD Max <br /> Batch number 033400010A Sample number(s) 4177741,4177744-4177750,4177752-4177753,4177755,4177757- <br /> 4177759 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/l 88 83 61-126 6 20 <br /> Batch number 033400014A Sample number(s) 4177733-4177740,4177742- <br /> 4177743,4177751,4177754,4177756,4177761-4177766,4177770 <br /> TPH - DRO CA LUFT (Waters) N D so ug/l 79 81 61-126 3 20 <br /> Batch number 033420023A Sample number(s) 4177760 4177767-4177769,4177771 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/l 76 78 61-126 2 20 <br /> Batch number 033420031A Sample number(s) 4177733-4177737,4177739-4177752 <br /> Methanol (by Direct InDection) N D 200 ug/l 96 78-114 <br /> Batch number 033420032A Sample number(S) 4177753-4177771 <br /> Methanol (by Direct In3ection) N D 200 u9/1 100 78-114 <br /> Batch number 03342A16A Sample number(S) 4177732-4177734,4177738,4177752-4177761 <br /> TPH-GRO - Waters N D 50 ug/l 95 96 70-130 1 30 <br /> Batch number 03342A16B Sample number(s) 4177741,4177747-4177751 <br /> 0 TPH-GRO - Waters N P 50 ug/l 95 96 70-130 1 30 <br /> Batch number 03343A16A Sample number(s) 4177762-4177771 <br /> TPH-GRO - Waters N D 50 ug/l 98 101 70-130 3 30 <br /> Batch number P033431AA Sample number(s) 4177738,4177770-4177771 <br /> Ethanol N D 50 ug/l 108 46-145 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 92 77-127 <br /> di-Isopropyl ether N D 0 5 u9/1 95 74-125 <br /> Ethyl t-butyl ether N D 0 5 ug/l 94 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 95 79-113 <br /> t-Butyl alcohol N D 5 ug/l 107 53-147 <br /> Benzene N D 0 5 ug/l 92 BS-117 <br /> Toluene N D 0 5 ug/l 93 85-115 <br /> Ethylbenzene N D 0 5 ug/l 94 82-119 <br /> Xylene (Total) N 1] 0 5 ug/l 95 64-120 <br /> Batch number P033432AA Sample number(s) 4177746-4177754 <br /> Ethanol N D 50 ug/l 122 46-145 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 89 77-127 <br /> dl-Isopropyl ether N D 0 5 ug/l 92 74-125 <br /> Ethyl t-butyl ether N D 0 5 ug/l 92 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 89 79-113 <br /> t-Butyl alcohol N D 5 ug/l 105 53-147 <br /> Benzene N D 0 5 ug/l 89 85-117 <br /> Toluene N D 0 5 ug/l 89 85-115 <br /> Ethylbenzene N D 0 5 ug/l 89 82-119 <br /> Xylene (Total) N D 0 5 ug/l 90 84-120 <br /> Batch number P033441AA Sample number(s) 4177733-4177737,4177739-4177744,4177755-4177757 <br /> Ethanol N D 50 ug/l 128 46-145 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 98 77-127 <br /> di-Isopropyl ether N D 0 5 ug/l 100 74-125 <br /> Ethyl t-butyl ether N D 0 5 ug/l 101 74-120 <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 />