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r <br /> Lancaster Laboratories Pagel of3 <br /> McUda�'kty S8ontrol Summary • <br /> Client Name Chevron Products Company Group Number 793115 <br /> Reported. 01/22/02 at 02 49 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC $REC Limats RPD RPD Max <br /> Batch number 020140028A Sample number(s) 3757208-3757210 <br /> Methanol (by Direct Injection) N D 1000 ug/l 104 80-113 <br /> Batch number 02015A53 Sample number(s) 3757210 <br /> Benzene N D 0 5 ug/l 108 106 60-118 2 30 <br /> Toluene N D 0 5 ug/l 103 101 82-119 1 30 <br /> Ethylbenzene N D 0 5 ug/l 106 104 81-119 1 30 <br /> Total Xylenes N D 1 5 ug/l 105 105 82-120 1 30 <br /> Methyl tert-Butyl Ether N D 2 5 ug/l 98 99 79-127 1 30 <br /> TPH-GRO - Waters N D 50 ug/l 88 83 76-119 5 20 <br /> Batch number 0201GA56 Sample number(s) 3757207-3757209 <br /> Benzene N D 0 5 ug/l 111 107 80-118 4 30 <br /> Toluene N D 0 5 ug/l 108 104 82-119 4 30 <br /> Ethylbenzene N D 0 5 ug/l 107 103 81-119 4 30 <br /> Total Xylenes N D 1 5 ug/l 108 104 82-120 4 30 <br /> Methyl tert-Butyl Ether N D 2 5 ug/l 108 106 79-127 1 30 <br /> TPH-GRO - Waters N D 50 ug/l 85 98 76-119 14 20 <br /> Batch number V020141AB Sample number(s) 3757208-3757210 <br /> Ethanol N D 500 ug/l 84 44-139 <br /> Methyl t--butyl ether N D 2 ug/l 120 77-127 <br /> di-Isopropyl ether N D 2 ug/l 101 74-125 • <br /> Ethyl t-butyl ether N D 2 ug/i 110 74-120 <br /> t-Amyl methyl ether N D 2 ug/i 116' 71-114 <br /> t-Butyl alcohol N D 100 ug/1 116 59-139 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD HKG DUP DUP Dup <br /> RFD <br /> Analysis Name %R.EC %REC Limits RPD MAX Cone Conc RPD Max <br /> Batch number 020140028A Sample number(s) 3757208-3757210 <br /> Methanol (by Direct Injection) 113 113 78-114 0 20 <br /> Batch number 02015A53 Sample number(s) 3757210 <br /> Benzene 110 66-140 <br /> Toluene lot 72-136 <br /> Ethylbenzene 109 71-138 <br /> Total Xylenes 108 69-140 <br /> Methyl tert-Butyl Ether 107 60-145 <br /> TPH-GRO -- Waters 95 97 74-132 2 20 <br /> Batch number 02016A56 Sample number(s) 3757207-3757209 <br /> Benzene 113 66-140 <br /> Toluene 108 72-138 <br /> Ethylbenzene 107 71-138 <br /> Total Xylenes 108 69-140 <br /> *-Outside of specification <br /> (1) The result for one or both deterrmnatlons 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 717-656-2681 2216 Rev 9/11100 <br />