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Analysis Repo <br /> Lancaster Laboratories Page 2 of 3 <br /> Where quality is a science <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 807990 <br /> Reported 05/29/02 at 08 43 AM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Xylene (Total) 96 95 46-158 i 30 <br /> Batch number D021411AB Sample number(s) 3821837-3821848 <br /> Methyl t-butyl ether 120 102 52-150 16 30 <br /> Benzene 95 93 43-151 2 30 <br /> Toluene 92 93 27-163 0 30 <br /> Ethylbenzene 101 101 30-158 1 30 <br /> Xylene (Total) 96 95 46-158 1 30 <br /> I <br /> I <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Soils <br /> Batch number 02134A33D <br /> Trifluorotoluene-F <br /> 3821846 87 <br /> 3821847 87 <br /> 3821848 85 <br /> Blank 100 <br /> LCS 102 <br /> MS 101 <br /> �SD 105 <br /> emits 61-127 <br /> Analysis Name TPH-GRO - Soils <br /> Batch number 02137A33C <br /> Trifluorotoluene-Fr <br /> 3821830 85 <br /> 3821831 89 <br /> 3821832 92 <br /> 3821633 96 <br /> 3821834 87 <br /> 3821835 83 <br /> 3821836 86 <br /> 3821837 92 <br /> 3821838 86 <br /> 3821839 89 <br /> Blank 88 <br /> LCS 100 <br /> MS 97 <br /> MSD 93 <br /> Limits 61-127 <br /> Analysis Name TPH-GRO - Soils <br /> Batch number 02137A33D <br /> Trzfluorotoluene-F <br /> 3821840 88 <br /> 3821841 BB <br /> 3821842 89 <br /> 3621843 98 <br /> 3821844 88 <br /> 3621845 93 <br /> *-Outside of specification <br /> 71) The result for one or both determinations was less than five times the LOQ <br /> The background result was more than four times the spike added <br /> Lancaster Laboratories Inc <br /> t5/f E M B E R 2425 New Holland Pike <br /> Me PO Box 12425 <br /> Lancaster PA 1760S 2425 <br /> 717 656 2300 Fax 717 656 2681 2216 Rev 9111/00 <br />