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i. <br />�rt <br />t <br />Lancaster <br />Laboratories Analysis !'deport <br />2425 New Holland Pike, PO Box 12425, Lancaster, PA 17605-2425 •717-656-2300 Fax: 717-656-2681 • www.lancasteriabs.com <br />Quality Control Summary <br />Client Name: ChevronTexaco Group Number: 881929 <br />Reported: 01/29/04 at 01:12 PM <br />Laboratory Compliance Quality Control <br />Blank Blank Report LCS LCSD LCS/LCSD <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 />F <br />Page 1 of 3 <br />RPD RPD Max <br />8 <br />4 <br />2 <br />3 <br />2 <br />7 <br />3 <br />4 <br />1 <br />3 <br />2 <br />3 <br />DUP <br />RPD <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />Dup <br />RPD <br />Max <br />Analysis Name <br />Result: <br />IDL Unita <br />REC <br />96REC <br />Limits <br />Batch number.. 04021ACSC <br />Sample <br />number(s): 4201618-4201622 <br />TPH-GRO —Waters <br />N.D. <br />50. ug/l <br />123 <br />70-130 <br />Batch number: 040220012A <br />Sample <br />number(s): 4201618-4201622 <br />Methanol (by Direct Injection) <br />N,D. <br />400. ug/l <br />119* <br />78-114 <br />Batch number: N040212AB <br />Sample <br />number(s): 4201618 <br />Ethanol <br />N.D. <br />50. ug/l <br />67 <br />46-145 <br />Methyl Tertiary Butyl Ether <br />N.D. <br />0.5 ug/1 <br />100 <br />77-127 <br />di -Isopropyl ether <br />N.D. <br />0.5 ug/l <br />101 <br />74-125 <br />Ethyl t -butyl ether <br />N.D. <br />0.5 ug/1 <br />103 <br />74-120 <br />t -Amyl methyl ether <br />N.D. <br />0.5 ug/l <br />103 <br />79-113 <br />t -Butyl alcohol <br />N.D. <br />5. ug/l <br />72 <br />53-147 <br />Benzene <br />N.D. <br />0.5 ug/l <br />102 <br />85-117 <br />1,2-Pichloroethane <br />N.D. <br />0.5 ug/l <br />102 <br />77-132 <br />r^ <br />Toluene <br />N.D. <br />0.5 ug/l <br />98 <br />85-115 <br />1,2-Dibromoethane <br />N.D. <br />0.5 ug/l <br />89 <br />81-114 <br />Ethylbenzene <br />N.D. <br />0.5 ug/l <br />99 <br />82-119 <br />Xylene (Total) <br />N.D. <br />0.5 ug/1 <br />98 <br />84-120 <br />Batch number: N040222AA <br />Sample <br />number(s): 4201619-4201622 <br />Ethanol <br />N.D. <br />50. ug/1 <br />65 <br />70 <br />46-145 <br />Methyl Tertiary Butyl Ether <br />N.D. <br />0.5 ug/l <br />95 <br />99 <br />77-127 <br />- <br />di -Isopropyl ether <br />N.D. <br />0.5 ug/l <br />96 <br />98 <br />74-125 <br />Ethyl t -butyl ether <br />N.D. <br />0.5 ug/l <br />99 <br />101 <br />74-120 <br />t -Amyl methyl ether <br />N.D. <br />0,5 ug/l <br />99 <br />101 <br />79-113 <br />t -Butyl alcohol. <br />N.D. <br />5. ug/l <br />72 <br />77 <br />53-147 <br />Benzene <br />N.D. <br />0.5 ug/l <br />97 <br />100 <br />85-117 <br />1,2-Dichloroethane <br />N.D. <br />0.5 ug/l <br />96 <br />100 <br />77-132 <br />Toluene <br />N.D. <br />0.5 ug/l <br />97 <br />98 <br />85-115 <br />1,2-Dibromoethane <br />N.D. <br />0.5 ug/l <br />87 <br />90 <br />81-114 <br />(-' <br />Ethylbenzene <br />N.D. <br />0.5 ug/l <br />97 <br />99 <br />82-119 <br />w <br />Xylene (Total) <br />N.D. <br />0.5 ug/l <br />96 <br />99 <br />84-120 <br />Sample Matrix Quality <br />Control <br />;-- <br />{ <br />MS <br />MSD MS/MSD <br />RPD <br />BKQ <br />DUP <br />Analysis Name <br />%REC <br />REC Limits <br />RPD MAX <br />Conc <br />Conc <br />r^ <br />Batch number: 04021A08C <br />Sample <br />number(s): 4201618-4201622 <br />TPH-GRO - Waters <br />110 <br />117 63-154 <br />4 30 <br />Batch number: 040220012A <br />Sample <br />number(s): 4201618-4201622 <br />= <br />Methanol (by Direct Injection) <br />119* <br />119* 73--117 <br />0 20 <br />FBatch <br />number: N040212AB <br />Sample <br />number(S): 4201618 <br />r.. <br />Ethanol <br />41 <br />42 38-149 <br />1 30 <br />z <br />Methyl Tertiary Butyl Ether <br />92 <br />93 69-134 <br />1 30 <br />di -Isopropyl ether <br />98 <br />97 75-130 <br />1 30 <br />Ethyl t -butyl ether <br />101 <br />100 78-119 <br />1 30 <br />t -Amyl methyl ether <br />99 <br />97 77-117 <br />1 30 <br />t -Butyl alcohol <br />58 <br />65 44-150 <br />11 30 <br />Benzene <br />105 <br />104 83-128 <br />1 3D <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 />F <br />Page 1 of 3 <br />RPD RPD Max <br />8 <br />4 <br />2 <br />3 <br />2 <br />7 <br />3 <br />4 <br />1 <br />3 <br />2 <br />3 <br />DUP <br />RPD <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />30 <br />Dup <br />RPD <br />Max <br />