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Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425-717-656-2300 Fax:717-656-2681•www.larcasterIabs.com <br /> Page 2 of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1121309 <br /> Reported: 12/09/08 at 11:13 AM <br /> Sample Matrix Quality Control <br /> Unspiked (UNSPK) = the sample used in conjunction with the matrix spike <br /> Background (BKG) = the sample used in conjunction with the duplicate <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max_ <br /> Toluene 110 87-128 <br /> Ethylbenzene 107 89-129 <br /> Xylene (Total) 107 84-131 <br /> Surrogate Quality Control <br /> Surrogate recoveries which are outside of the QC window are confirmed <br /> unless attributed to dilution or otherwise noted on the Analysis Report. <br /> Analysis Name: TPH-DRO water C10-C25 <br /> Batch number: 083300013A <br /> Orthoterphenyl <br /> 5536930 989* <br /> 5536931 106 <br /> 5536932 100 <br /> Blank 96 <br /> LCS 107 <br /> MS 117* <br /> MSD 109 <br /> Limits: 45-114 <br /> Analysis Name: PAHs in Water by LVI GC/MS <br /> Batch number: 08330WAI026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5536930 147 85 84 <br /> 5536931 75 81 84 <br /> 5536932 70 84 85 <br /> Blank 71 80 85 <br /> LCS 65 82 79 <br /> LCSD 69 83 79 <br /> Limits: 64-161 62-134 61-150 <br /> Analysis Name: TPH-DRO water C10-C25 w/Si Gel <br /> Batch number: 083380008A <br /> Orthoterphenyl <br /> 5536930 810* <br /> 5536931 99 <br /> Blank 78 <br /> LCS 111 <br /> Limits: 45-114 <br /> Analysis Name: EPA SW846/8260 (water-25ml) #1 <br /> Batch number: C083291AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> *-Outside of specification <br /> (1)The result for one or both determinations was less than five times the LOQ. <br /> (2)The unspiked result was more than four times the spike added. <br />