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l+ <br />Lancaster <br />t Laboratories <br />2125 Now Holland pike, p0 Bax 12425, LanCSSier, YA 176052425 •717-656-2300 Fax: 717-656 2681 • www.larlcasterlabs.cOmff <br />Analysis Renarf <br />Page 2 of 6 <br />Quality Control Summary <br />Client Name: ChevronTexaco <br />Reported: 11/11/03 at 11:44 Am <br />�aM <br />Batch number: 03304A16A <br />TPH-GRO - Waters <br />Batch number: 033070013A <br />Methanol (by Direct Injection) <br />Batch number: 033070015A <br />Methanol (by Direct Injection) <br />Batch number: 0330BA16A <br />TPH-GRO --Waters <br />Batch number: 03310ASSA <br />TPH-GRO - Waters <br />Batch number: P033071AA <br />Ethanol <br />Methyl Tertiary Butyl Ether <br />di -Isopropyl ether <br />methyl t -butyl ether <br />{ Amyl methyl ether <br />--Butyl-alcohol <br />Benzene <br />1,2-Dichloroethane <br />ibluene <br />1,2-Dibromoethane <br />Ethylbenzene <br />Xylene (Total) <br />Batch.number: P033072AA <br />Nethyl Tertiary bu <br />Benzene tyl Ether. <br />Toluene <br />8thylbenzene <br />Xylene (Total) <br />1 Batch number: P033082AA <br />s -Sttsanol <br />Methyl'Tertiary Butyl Ether <br />di -Isopropyl ether <br />Ethyl it -butyl ether <br />t-Aaayl methyl ether <br />t-Butyl.alcohol <br />Benzene <br />1,2-Dichloroethane <br />Toluene. <br />1,2-1)ibromoethane <br />Ethylbenzene <br />Xylene (Total) <br />Batch number: P033091AA <br />+ Methyl Tertiary Butyl Ether <br />Group Number: 872897 <br />Sample Matrix Quality Control <br />MS MSD MS/MSD <br />RPD BKG <br />RBC $REC imi <br />��@ RPD <br />DIIp DUP Dup <br />� Conc <br />Conc RPD <br />Sample number(s): 4154108— <br />Meuc <br />113 112 63-154 1 <br />30 <br />Sample number(s): 4154109-4154119 <br />96 100 73-117 4 <br />20 <br />Sample number(s): 4154120-4154135 <br />92 108 73-117 15 <br />20 <br />Sample number(s)! 4154115,4154118-4154119,4154126,4154130-4154132 <br />113 106 63-154 <br />6 <br />30 <br />Sample number(s): 4154109 -4154114,4154116 <br />4154129,4154133-4154135 <br />-4154117,4154120-4154125,4154127- <br />108 63-154 <br />Sample number(s): 4154109-4154117 <br />87 89 38-149 2 <br />98 <br />30 <br />97 69-134 1 <br />96 <br />30 <br />95 75-130 0 <br />92 92 76-119 0 <br />30 <br />97 99 77-117 1 <br />30 <br />30 <br />89 89 44-150. 0 <br />104 105 83-126 <br />30 <br />1 <br />99 97 73-136 3 <br />30 <br />30 <br />104 103 83-127 0 <br />97 <br />30 <br />97 78-120 0 <br />104 104 62-129 1 <br />30 <br />106 105 82-130 1 <br />30 <br />30 <br />Sample number(s): 4154108 <br />100 102 69-134 2 <br />30 <br />110 112 83-128 1 <br />30 <br />113 113 83-127 0 <br />30 <br />112 113 82-129 0 <br />30 <br />115 114 82-130 1. <br />30 <br />Sample number(s): 4154118-4154135 <br />91 97 38-149 6 <br />99 <br />30 <br />103 69-134 3 <br />97 <br />30 <br />98 75-130 0 <br />94 <br />30 <br />95 78-119 2 <br />99 101 77-117 <br />30 <br />.2 <br />94 97 44-150 3 <br />30 <br />30 <br />104 105 83-126 1 <br />30 <br />97 96 73-136 1 <br />103 104 <br />30 <br />83-127 1 <br />97. 98 78-120 0 <br />30 <br />104 105 82-129. - 1 <br />30 <br />30 <br />105 105 82-130 0 <br />30 <br />Sample number(s): 4154133 <br />101 99 69-134' 1 <br />30 <br />'- Outside of specification <br />e.f�1) The result for one or bath determinations was less than five times the LOQ, <br />- . ^ ") The background result was more than four times the spike added. <br />