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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: 1075638 <br /> Reported: 02/22/08 at 09:12 AM <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 /> Batch number: 080330022A Sample number(s) 5269544-5269547 UNSPK: P269575 <br /> TPH-DRO (C10-C25) Water 93 98 59-128 5 20 <br /> Batch number: 08033WAI026 Sample number(s) 5269544-5269545 UNSPK: P269575 <br /> Naphthalene 84 86 70-130 2 30 <br /> Acenaphthylene 94 98 70-130 5 30 <br /> Acenaphthene 86 92 70-130 8 30 <br /> Fluorene 80 87 70-130 9 30 <br /> Phenanthrene 94 101 70-130 7 30 <br /> Anthracene 72 77 70-130 8 30 <br /> Fluoranthene 95 102 70-130 9 30 <br /> Pyrene 98 103 70-130 6 30 <br /> Benzo(a)anthracene 94 100 70-130 6 30 <br /> Chrysene 93 96 70-130 4 30 <br /> Benzo(b)fluoranthene 93 98 70-130 7 30 <br /> Benzo(k)fluoranthene 91 96 70-130 7 30 <br /> Benzo(a)pyrene 46* 54* 70-130 18 30 <br /> Indeno(1,2,3-cd)pyrene 67* 74 70-130 10 30 <br /> Dibenz(a,h)anthracene 74 80 70-130 9 30 <br /> Benzo(g,h,i)perylene 54* 64* 70-130 17 30 <br /> Batch number: 08033WAT026 Sample number(s) : 5269546-5269547 UNSPK: P33WTUS <br /> Naphthalene 84 78 72-119 5 30 <br /> Acenaphthylene 85 83 73-117 1 30 <br /> Acenaphthene 84 84 77-111 0 30 <br /> Fluorene 88 86 76-119 1 30 <br /> Phenanthrene 88 86 77-116 2 30 <br /> Anthracene 70 69* 70-118 0 30 <br /> Fluoranthene 89 88 68-129 0 30 <br /> Pyrene 88 88 72-127 1 30 <br /> Benzo(a)anthracene 83 83 73-125 2 30 <br /> Chrysene 89 89 79-118 1 30 <br /> Benzo(b)fluoranthene 85 83 70-124 2 30 <br /> Benzo(k)fluoranthene 89 89 77-118 0 30 <br /> Benzo(a)pyrene 41* 45* 48-132 10 30 <br /> Indeno(1,2,3-cd)pyrene 68 68 55-129 2 30 <br /> Dibenz(a,h)anthracene 73 73 52-120 0 30 <br /> Benzo(g,h,i)perylene 53 58 43-137 10 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: 080330022A <br /> Orthoterphenyl <br /> 5269544 95 <br /> 5269545 73 <br /> 5269546 125* <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 />