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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: 1121602 <br /> Reported: 12/10/08 at 02:31 PM <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 /> Acenaphthylene 87 88 70-130 1 30 <br /> Acenaphthene 83 87 70-130 5 30 <br /> Fluorene 90 89 70-130 0 30 <br /> Phenanthrene 95 94 70-130 1 30 <br /> Anthracene 49* 56* 70-130 13 30 <br /> Fluoranthene 89 86 70-130 3 30 <br /> Pyrene 73 82 70-130 11 30 <br /> Benzo(a)anthracene 77 82 70-130 6 30 <br /> Chrysene 91 91 70-130 0 30 <br /> Benzo(b)fluoranthene 85 94 70-130 10 30 <br /> Benzo(k)fluoranthene 80 85 70-130 5 30 <br /> Benzo(a)pyrene 27* 30* 70-130 13 30 <br /> Indeno(1,2,3-cd)pyrene 58* 54* 70-130 8 30 <br /> Dibenz(a,h)anthracene 70 62* 70-130 12 30 <br /> Benzo(g,h,i)perylene 44* 43* 70-130 2 30 <br /> Batch number: G083381AA Sample number(s) : 5539184-5539191 UNSPK: 5539185 <br /> Benzene 108 108 85-126 0 30 <br /> Toluene 106 107 87-128 1 30 <br /> Ethylbenzene 105 105 89-129 0 30 <br /> Xylene (Total) 101 101 84-131 1 30 <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 /> 5539185 99 <br /> 5539186 117* <br /> 5539187 109 <br /> 5539188 102 <br /> 5539189 98 <br /> 5539190 101 <br /> 5539191 96 <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: 08331WABO26 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5539185 80 89 92 <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 />