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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 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1082249 <br /> Reported: 04/10/08 at 11:38 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 /> Fluorene 96 88 70-130 9 30 <br /> Phenanthrene 103 104 70-130 1 30 <br /> Anthracene 67* 59* 70-130 12 30 <br /> Fluoranthene 55* 81 70-130 38* 30 <br /> Pyrene 95 92 70-130 3 30 <br /> Benzo(a)anthracene 96 90 70-130 6 30 <br /> Chrysene 103 101 70-130 2 30 <br /> Benzo(b)fluoranthene 110 118 70-130 6 30 <br /> Benzo(k)fluoranthene 98 104 70-130 6 30 <br /> Benzo(a)pyrene 39* 33* 70-130 17 30 <br /> Indeno(1,2,3-cd)pyrene 97 95 70-130 2 30 <br /> Dibenz(a,h)anthracene 108 108 70-130 1 30 <br /> Benzo(g,h,i)perylene 81 77 70-130 5 30 <br /> Batch number: 080870001A Sample number(s) : 5307573-5307578,5307580-5307581 UNSPK: 5307575 <br /> TPH-DRO(C10-C25)Water w/ SiGel 62 77 59-128 21* 20 <br /> Batch number: C080851AA Sample number(s) : 5307571-5307581 UNSPK: 5307575 <br /> Benzene 107 107 85-126 0 30 <br /> Toluene 115 114 94-128 1 30 <br /> Ethylbenzene 114 113 96-128 1 30 <br /> Xylene (Total) 115 113 91-126 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 (C10-C25) Water <br /> Batch number: 080810010A <br /> Orthoterphenyl <br /> 5307571 86 <br /> 5307573 99 <br /> 5307574 101 <br /> 5307575 97 <br /> 5307576 117* <br /> 5307577 120* <br /> 5307578 88 <br /> 5307579 93 <br /> 5307580 96 <br /> 5307581 101 <br /> Blank 96 <br /> LCS 116* <br /> MS 117* <br /> MSD 120* <br /> Limits: 45-114 <br /> Analysis Name: PAHs in Water by LVI GC/MS <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 />