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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: 1105584 <br /> Reported: 08/29/08 at 03:31 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: 082290017A Sample number(s) : 5442231-5442233 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 66 73 57-118 9 20 <br /> Batch number: 08229WABO26 Sample number(s) : 5442231-5442233 <br /> Naphthalene N.D. 0.05 ug/l 86 74 68-100 15 30 <br /> Acenaphthylene N.D. 0.01 ug/l 94 82 69-126 13 30 <br /> Acenaphthene N.D. 0.01 ug/l 96 85 68-116 12 30 <br /> Fluorene N.D. 0.01 ug/l 89 76 49-145 15 30 <br /> Phenanthrene N.D. 0.01 ug/l 96 84 71-124 13 30 <br /> Anthracene N.D. 0.01 ug/l 88 77 68-122 14 30 <br /> Fluoranthene N.D. 0.01 ug/l 100 86 67-133 15 30 <br /> Pyrene N.D. 0.01 ug/l 101 85 68-128 18 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 97 79* 80-119 21 30 <br /> Chrysene N.D. 0.01 ug/l 102 83 80-124 21 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 93 79 75-123 16 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 98 87 72-122 12 30 <br /> Benzo(a)pyrene N.D. 0.003 ug/l 95 81 70-118 16 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 97 82 48-165 17 30 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 98 82 60-138 18 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 94 79 58-138 17 30 <br /> Batch number: 082400001A Sample number(s) : 5442231-5442233 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 32. ug/l 53 56 45-114 7 20 <br /> Batch number: L082321AA Sample number(s) : 5442230-5442233 <br /> Benzene N.D. 0.1 ug/l 98 97 87-111 1 30 <br /> Toluene N.D. 1. ug/l 98 97 89-113 1 30 <br /> Ethylbenzene N.D. 1. ug/l 101 98 88-114 2 30 <br /> Xylene (Total) N.D. 1. ug/l 100 98 88-115 2 30 <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: L082321AA Sample number(s) : 5442230-5442233 UNSPK: P442216 <br /> Benzene 102 85-126 <br /> Toluene 101 87-128 <br /> Ethylbenzene 104 89-129 <br /> Xylene (Total) 100 84-131 <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 />