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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.lancasteriabs.com <br /> Pagel of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1203972 <br /> Reported: 07/28/10 at 02:06 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 Program Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: G102022AA Sample number(s) : 6037215 <br /> Benzene N.D. 0.1 ug/l 100 80-120 <br /> Ethylbenzene N.D. 1.0 ug/l 102 80-120 <br /> Toluene N.D. 1.0 ug/l 102 80-120 <br /> Xylene (Total) N.D. 1.0 ug/l 103 80-120 <br /> Batch number: 10202WAH026 Sample number(s) : 6037215 <br /> Acenaphthene N.D. 0.010 ug/1 83 83 74-109 1 30 <br /> Acenaphthylene N.D. 0.010 ug/1 83 85 70-110 2 30 <br /> Anthracene N.D. 0.010 ug/l 84 84 66-111 0 30 <br /> Benzo(a)anthracene N.D. 0.010 ug/l 82 83 72-114 1 30 <br /> Benzo(a)pyrene N.D. 0.010 ug/l 79 78 64-115 1 30 <br /> Benzo(b)fluoranthene N.D. 0.010 ug/l 75 74 69-123 1 30 <br /> Benzo(g,h,i)perylene N.D. 0.010 ug/l 75 74 68-125 1 30 <br /> Benzo(k)fluoranthene N.D. 0.010 ug/l 88 87 72-122 1 30 <br /> Chrysene N.D. 0.010 ug/1 87 88 76-116 1 30 <br /> Dibenz(a,h)anthracene N.D. 0.010 ug/l 77 77 71-125 1 30 <br /> Fluoranthene N.D. 0.010 ug/l 85 88 75-116 3 30 <br /> Fluorene N.D. 0.010 ug/1 87 87 75-114 0 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.010 ug/1 78 78 69-124 1 30 <br /> 1-Methylnaphthalene N.D. 0.010 ug/1 89 89 71-117 1 30 <br /> 2-Methylnaphthalene N.D. 0.010 ug/1 76 77 75-115 1 30 <br /> Naphthalene N.D. 0.010 ug/l 86 85 72-109 0 30 <br /> Phenanthrene N.D. 0.010 ug/1 86 87 76-111 2 30 <br /> Pyrene N.D. 0.010 ug/l 78 79 69-118 2 30 <br /> Batch number: 102030013A Sample number(s) : 6037215 <br /> TPH-DRO water C10-C25 N.D. 50. ug/l 70 83 54-122 16 20 <br /> Batch number: 102090111A Sample number(s) : 6037215 <br /> TPH-DRO water C10-C25 w/Si Gel N.D. 32. ug/l 63 73 45-114 15 20 <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: G102022AA Sample number(s) : 6037215 UNSPK: P035060 <br /> Benzene 107 105 87-126 1 30 <br /> Ethylbenzene 109 107 80-140 2 30 <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 />