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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 1 of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1029183 <br /> Reported: 03/26/07 at 04:07 PM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted. In these situations, to demonstrate precision and accuracy at <br /> a batch level, a LCS/LCSD was performed, unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number: 07078SLB026 Sample number(s) : 5004019-5004026 <br /> Naphthalene N.D. 0.001 mg/kg 90 63-116 <br /> Acenaphthylene N.D. 0.0003 mg/kg 81 61-109 <br /> Acenaphthene N.D. 0.0007 mg/kg 93 65-120 <br /> Fluorene N.D. 0.0007 mg/kg 94 66-122 <br /> Phenanthrene N.D. 0.0007 mg/kg 96 64-118 <br /> Anthracene N.D. 0.0003 mg/kg 89 52-128 <br /> Fluoranthene N.D. 0.0007 mg/kg 104 57-128 <br /> Pyrene N.D. 0.0007 mg/kg 102 65-127 <br /> Benzo(a)anthracene N.D. 0.0007 mg/kg 98 59-134 <br /> Chrysene N.D. 0.0003 mg/kg 99 57-122 <br /> Benzo(b)fluoranthene N.D. 0.001 mg/kg 101 53-146 <br /> Benzo(k)fluoranthene N.D. 0.001 mg/kg 91 62-128 <br /> Benzo(a)pyrene N.D. 0.0007 mg/kg 87 59-126 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.001 mg/kg 83 64-138 <br /> Dibenz(a,h)anthracene N.D. 0.001 mg/kg 68 51-143 <br /> Benzo(g,h,i)perylene N.D. 0.001 mg/kg 83 62-135 <br /> Batch number: 070790018A Sample number(s) : 5004019-5004026 <br /> Total TPH N.D. 4.0 mg/kg 86 88 68-115 2 20 <br /> C10-C36 N.D. 4.0 mg/kg <br /> Batch number: B070761AA Sample number(s) : 5004019-5004026 <br /> Benzene N.D. 0.0005 mg/kg 96 84-115 <br /> Toluene N.D. 0.001 mg/kg 94 81-116 <br /> Ethylbenzene N.D. 0.001 mg/kg 93 82-115 <br /> Xylene (Total) N.D. 0.001 mg/kg 94 82-117 <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 /> Batch number: 07078SLB026 Sample number(s) : 5004019-5004026 UNSPK: P006057 <br /> Naphthalene 90 83 53-124 8 30 <br /> Acenaphthylene 87 79 35-132 10 30 <br /> Acenaphthene 95 92 55-130 4 30 <br /> Fluorene 96 93 61-124 3 30 <br /> Phenanthrene 97 94 50-139 3 30 <br /> Anthracene 92 88 51-138 5 30 <br /> Fluoranthene 102 101 29-158 0 30 <br /> Pyrene 101 100 25-175 1 30 <br /> Benzo(a)anthracene 99 98 37-158 1 30 <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br />