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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.lancasterlabs.com <br /> Page 1 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 964267 <br /> Reported: 11/04/05 at 04:35 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: 05295WAD026 Sample number(s) : 4630385-4630390,4630392-4630394 <br /> Naphthalene N.D. 0.01 ug/l 96 61-121 <br /> Acenaphthylene N.D. 0.02 ug/l 109 64-116 <br /> Acenaphthene N.D. 0.01 ug/l 108 62-112 <br /> Fluorene N.D. 0.01 ug/l 106 64-134 <br /> Phenanthrene N.D. 0.01 ug/l 105 63-139 <br /> Anthracene N.D. 0.02 ug/l 101 57-117 <br /> Fluoranthene N.D. 0.01 ug/l 111 61-131 <br /> Pyrene N.D. 0.02 ug/l 103 67-129 <br /> Benzo(a)anthracene N.D. 0.02 ug/l 111 63-119 <br /> Chrysene N.D. 0.02 ug/l 110 63-139 <br /> Benzo(b)fluoranthene N.D. 0.02 ug/l 115 62-124 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 106 63-124 <br /> Benzo(a)pyrene N.D. 0.02 ug/l 102 67-118 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.02 ug/l 119 60-123 <br /> Dibenz(a,h)anthracene N.D. 0.02 ug/l 116 39-122 <br /> Benzo(g,h,i)perylene N.D. 0.02 ug/l 114 62-126 <br /> Batch number: 052970005A Sample number(s) : 4630385-4630387,4630392-4630394 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 88 59-131 <br /> Batch number: 05297AO8A Sample number(s) : 4630385-4630390,4630392-4630393 <br /> TPH-GRO - Waters N.D. 50. ug/l 108 106 70-130 2 30 <br /> Batch number: 05298AO8A Sample number(s) : 4630394 <br /> TPH-GRO - Waters N.D. 50. ug/l 108 113 70-130 5 30 <br /> Batch number: 053010005A Sample number(s) : 4630388-4630390 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 86 59-131 <br /> Batch number: Z052974AA Sample number(s) : 4630385-4630394 <br /> Benzene N.D. 0.5 ug/l 102 85-117 <br /> Toluene N.D. 0.5 ug/l 103 85-115 <br /> Ethylbenzene N.D. 0.5 ug/l 105 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 104 83-113 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Cone RPD Max <br /> Batch number: 05295WAD026 Sample number(s) : 4630385-4630390,4630392-4630394 <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 />