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Analysis • • <br /> r <br /> Lancaster Laboratories Page 2 of 4 <br /> . Where qualr' is a science <br /> Quality Control Summary <br /> Client Name Chevron Products Company Group Number 800323 <br /> Reported 03/27/02 at 08 31 !'M <br /> Sample Matrix Quality Control <br /> Ms MSD MS/M5D RPD BKG DUP DTP DRuPD <br /> Anal sis N %REC Limits RPD MAX Conc Cana RPD Max <br /> Batch number P020801AA sample number(s) 3788210 <br /> Methyl t-butyl ether 120 121 69-134 0 30 <br /> di-Isopropyl ether 123 125 68-133 1 30 <br /> Ethyl t-butyl ether 124* 130* 73-123 5 30 <br /> t-Amyl methyl ether 114 117 69-118 2 30 <br /> t-Butyl alcohol 110 110 51-148 0 30 <br /> Benzene 127 129 78-134 1 30 <br /> 1,2-Dichlorcethane 125 128 75-141 3 30 <br /> Toluene 121 122 78-133 1 30 <br /> 1,2-Dibromoethane 113 117 78-120 3 30 <br /> Ethylbenzene 123 125 82-134 2 30 <br /> Xylene (Total) 124 126 81-136 1 30 <br /> Batch number P020801AB Sample number(5) 3788211-3788218 <br /> Methyl t-butyl ether 120 121 69-134 0 30 <br /> di-Isopropyl ether 123 125 68-133 1 30 <br /> Ethyl t-butyl ether 124* 130* 73-123 5 30 <br /> t-Amyl methyl ether 114 117 69-118 2 30 <br /> t-Butyl alcohol 110 110 51-148 0 30 <br /> Benzene 127 129 78-134 1 30 <br /> 1,2-Dichloroethane 125 128 75--141 3 30 <br /> Toluene 121 122 78-133 1 30 <br /> 1,2-Dibromoethane 113 117 78-120 3 30 <br /> Ethylbenzene 123 125 82-134 2 30 <br /> Xylene {Total) 124 126 81-136 1 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 02073A55A <br /> Trifluorotoluene-F <br /> 3788210 108 <br /> 3788211 105 <br /> 3786212 101 <br /> 3788213 102 <br /> Blank 101 <br /> LCS 115 <br /> LCSD 115 <br /> MS 112 <br /> Limits 67-135 <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 02073A56B <br /> Trifluorotoluene-F <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five tones the LOQ <br /> �(2) The background result was more than four times the spike added <br /> Lancaster Laboratories Inc <br /> M E M B E R 2425 New Holland Pike <br /> PO Sox 12425 <br /> � Lancaster PA 17605 2425 2216 Rev 9111100 <br /> 717 656 2300 Fax 717 656 2681 <br />