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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: 982240 <br /> Reported: 03/22/06 at 04:30 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: 060800000A Sample number(s) : 4732498-4732500 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 84 62-127 <br /> Batch number: 0608OA16A Sample number(s) : 4732498-4732500 <br /> TPH-GRO - Waters N.D. 50. ug/l 100 70-130 <br /> Batch number: 06080WAF026 Sample number(s) : 4732498-4732500 <br /> Naphthalene N.D. 0.01 ug/l 91 61-121 <br /> Acenaphthylene N.D. 0.02 ug/l 96 64-116 <br /> Acenaphthene N.D. 0.01 ug/l 97 78-118 <br /> Fluorene N.D. 0.01 ug/l 98 64-134 <br /> Phenanthrene N.D. 0.01 ug/l 96 79-118 <br /> Anthracene N.D. 0.02 ug/l 96 73-117 <br /> Fluoranthene N.D. 0.01 ug/l 101 61-131 <br /> Pyrene N.D. 0.02 ug/l 88 67-129 <br /> Benzo(a)anthracene N.D. 0.02 ug/l 95 63-119 <br /> Chrysene N.D. 0.02 ug/l 94 80-125 <br /> Benzo(b)fluoranthene N.D. 0.02 ug/l 87 62-124 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 98 63-124 <br /> Benzo(a)pyrene N.D. 0.02 ug/l 87 66-118 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.02 ug/l 103 60-123 <br /> Dibenz(a,h)anthracene N.D. 0.02 ug/l 102 68-129 <br /> Benzo(g,h,i)perylene N.D. 0.02 ug/l 98 62-126 <br /> Batch number: Z060802AA Sample number(s) : 4732498-4732500 <br /> Benzene N.D. 0.5 ug/l 97 85-117 <br /> Toluene N.D. 0.5 ug/l 97 85-115 <br /> Ethylbenzene N.D. 0.5 ug/l 98 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 100 83-113 <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: 060800000A Sample number(s) : 4732498-4732500 UNSPK: 4732498 <br /> TPH-DRO (C10-C25) Water 77 80 59-128 6 20 <br /> Batch number: 0608OA16A Sample number(s) : 4732498-4732500 UNSPK: 4732498 <br /> TPH-GRO - Waters 102 102 63-154 0 30 <br /> Batch number: 06080WAF026 Sample number(s) : 4732498-4732500 UNSPK: 4732498 <br /> Naphthalene 94 95 67-112 0 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 />