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Analysis Report <br /> Lancaster <br /> g Laboratories <br /> Page 1 of 2 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 838606 <br /> Reported 01/31/03 at 01 53 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC $RSC Limits RPD RPD Max <br /> Batch number 03021A07D Sample number(s) 3981575-3981577 <br /> TPH-GRO - Waters N D 50 ug/l 99 106 74-116 7 30 <br /> Batch number 030280003A Sample number(s) 3981576-3981577 <br /> Methanol (by Direct Injection) N D 200 ug/1 92 64-130 <br /> Batch number P030272AA Sample number(s) 3981575-3981577 <br /> Ethanol N D 50 ug/1 65 43-159 <br /> Methyl Tertiary Butyl Ether N D S ug/1 96 77-127 <br /> di-Isopropyl ether N D 5 ug/1 94 74-125 <br /> Ethyl t-butyl ether N D 5 ug/1 96 74-120 <br /> t-Amyl methyl ether N D 5 ug/l 100 71-114 <br /> t-Butyl alcohol N D 5 ug/1 Be 59-139 <br /> Benzene N D 5 ug/l 102 85-117 <br /> Toluene N D 5 ug/l 101 85-115 <br /> Ethylbenzene N D 5 ug/1 102 82-119 <br /> Xylene (Total) N D 5 u9/1 105 84-120 <br /> AD <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DQP DUP Dup <br /> RPD <br /> Analysis Name REC %RSC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 03021A07D Sample number(s) 3981575-3981577 <br /> TPH-GRO - Waters 112 107 74-132 5 30 <br /> Batch number 030280003A Sample number(s) 3981576-3981577 <br /> Methanol (by Direct Injection) 92 92 69-127 0 20 <br /> Batch number P030272AA Sample number(s) 3981575-3981577 <br /> Ethanol 68 75 34-163 10 30 <br /> Methyl Tertiary Butyl Ether 99 99 69-134 0 30 <br /> di-Isopropyl ether 97 97 68-133 0 30 <br /> Ethyl t-butyl ether 98 97 73-123 1 30 <br /> t-Amyl methyl ether 103 101 69-118 2 30 <br /> t-Butyl alcohol 92 92 51-148 0 30 <br /> Benzene 109 109 78-134 0 30 <br /> Toluene 109 108 83-127 1 30 <br /> Ethylbenzene 107 107 82-134 0 30 <br /> Xylene (Total) 111 109 82-130 2 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 03021A07D <br /> Trifluorotoluene-F <br /> 3981575 Be <br /> 3981576 89 <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 I_M B E R 2425 New Holland Pike <br /> ® PO Box 12425 <br /> Lancaster,PA 17605-2425 <br /> 717-656-2300 Fax 717-656-2687 <br />