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I <br /> ' I <br /> ati <br /> Page 2 of 2 <br /> Quality Control Summary I <br /> Client ;Name: ChevronTexaco Group Number: 914461 <br /> Reported: 10/12/04 at 05:28 PM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSU RPD BKG DUP DUP Dnp RPD <br /> Analysis Name %REC REC Limits RPD MAX Cone Cone APD Max <br /> 1,2-Dibromoethane 93 91 78-120 3 30 <br /> Ethylbenzene 102 98 82-129 4 30 <br /> Xylene (Total) 94 93 82-130 2 30 <br /> Surrogate Quality Control <br /> Analysis Name: TPH-GRO - Waters <br /> Batch number: 04279A16A <br /> ? Trifluorotoluene-F 3 <br /> { <br /> 4366076 109 { <br /> Blank ' 93 <br /> { LCS v 91 i <br /> LCSD r. 112 _ =' <br /> MS 104 <br /> I MSD 105 <br /> e ; <br /> Limits: ji 57-146 <br /> li I <br /> Analysis Name: TPH-GRO - Waters <br /> Batch number: 04284A16A <br /> Trifluorotoluene-F <br /> 4366077 112 1 <br /> Blank 107 <br /> LCS 111 <br /> �1 <br /> LCSD 111" MS ill <br /> fs.. Limits: 57-146 3 <br /> - _ Analysis' Name: BTEX+5 Oxygenates+EDC+EDB+ETON <br /> Batch number: Z042821AA f <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 4366076 94 97 97 Be <br /> 436607,7 95 100 97 92 <br /> 4. Blank 93 95 98 69 <br /> LCS 91 94 97 93 <br /> MS 96 98 97 92 i <br /> MSD 95 99 96 92 <br /> Limits: 81-120 82-112 85-112 83-113 } <br /> i <br /> } <br /> •-Outside of specification <br /> (I} 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 /> II , <br /> h I <br /> i ' s <br /> I <br />