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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 /> Page 1 of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1170491 <br /> Reported: 11/30/09 at 12:47 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: G093161AA Sample number(s) : 5833397-5833402 <br /> Benzene N.D. 0.1 ug/l 107 80-120 <br /> Ethylbenzene N.D. 1. ug/l 107 80-120 <br /> Toluene N.D. 1. ug/l 109 80-120 <br /> Xylene (Total) N.D. 1. ug/l 108 80-120 <br /> Batch number: 09317WAGO26 Sample number(s) : 5833397-5833399,5833401-5833402 <br /> Acenaphthene N.D. 0.01 ug/l 130* 68-116 <br /> Acenaphthylene N.D. 0.01 ug/l 121 69-126 <br /> Anthracene N.D. 0.01 ug/l 125* 68-122 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 102 80-119 <br /> Benzo(a)pyrene N.D. 0.003 ug/l 122* 70-118 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 140* 75-123 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 109 72-139 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 125* 72-122 <br /> Chrysene N.D. 0.01 ug/l 91 80-124 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 128 60-138 <br /> Fluoranthene N.D. 0.01 ug/l 130 67-133 <br /> Fluorene N.D. 0.01 ug/l 140 49-145 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 129 66-136 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/l 92 70-130 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/l 86 70-130 <br /> Naphthalene N.D. 0.05 ug/l 94 68-100 <br /> Phenanthrene N.D. 0.01 ug/l 117 71-124 <br /> Pyrene N.D. 0.01 ug/l 90 50-149 <br /> Batch number: 093160003A Sample number(s) : 5833397-5833399,5833401-5833402 <br /> TPH-DRO water C10-C25 N.D. 50. ug/l 104 98 54-122 6 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: G093161AA Sample number(s) : 5833397-5833402 UNSPK: 5833397 <br /> Benzene 108 107 87-126 1 30 <br /> Ethylbenzene 110 108 80-140 2 30 <br /> Toluene 110 109 83-127 1 30 <br /> Xylene (Total) 109 107 84-125 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 />