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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 5 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 935922 <br /> Reported: 04/08/05 at 01:00 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: 05077A53B Sample number(s) : 4485213,4485216-4485218,4485220 <br /> TPH-GRO - Waters N.D. 50. ug/l 92 91 70-130 1 30 <br /> Benzene N.D. 0.5 ug/l 98 97 86-119 1 30 <br /> Toluene N.D. 0.5 ug/l 107 105 82-119 1 30 <br /> Ethylbenzene N.D. 0.5 ug/l 101 100 81-119 1 30 <br /> Total Xylenes N.D. 1.5 ug/l 103 102 82-120 1 30 <br /> Methyl tert-Butyl Ether N.D. 2.5 ug/l 102 101 82-124 1 30 <br /> Batch number: 050780013A Sample number(s) : 4485204-4485212,4485214-4485215,4485219 <br /> Total TPH N.D. 4.0 mg/kg 90 89 65-122 1 20 <br /> C10-C36 N.D. 4.0 mg/kg <br /> Batch number: 050780016A Sample number(s) : 4485213,4485216-4485218 <br /> TPH-DRO CALUFT(Waters) N.D. 50. ug/l 99 100 64-125 1 20 <br /> Batch number: 05078WAA026 Sample number(s) : 4485213,4485216-4485218 <br /> Naphthalene N.D. 0.01 ug/l 83 84 61-121 1 30 <br /> Acenaphthylene N.D. 0.01 ug/l 86 85 65-119 1 30 <br /> Acenaphthene N.D. 0.01 ug/l 86 86 62-112 0 30 <br /> Fluorene N.D. 0.01 ug/l 88 89 64-134 2 30 <br /> Phenanthrene N.D. 0.01 ug/l 91 90 63-139 1 30 <br /> Anthracene N.D. 0.02 ug/l 92 92 57-117 0 30 <br /> Fluoranthene N.D. 0.01 ug/l 88 88 61-131 0 30 <br /> Pyrene N.D. 0.02 ug/l 93 95 67-129 2 30 <br /> Benzo(a)anthracene N.D. 0.02 ug/l 91 92 64-120 1 30 <br /> Chrysene N.D. 0.02 ug/l 91 92 63-139 0 30 <br /> Benzo(b)fluoranthene N.D. 0.02 ug/l 93 91 69-128 2 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 91 92 68-124 2 30 <br /> Benzo(a)pyrene N.D. 0.02 ug/l 87 90 66-123 3 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.02 ug/l 92 93 72-125 1 30 <br /> Dibenz(a,h)anthracene N.D. 0.02 ug/l 93 92 72-123 1 30 <br /> Benzo(g,h,i)perylene N.D. 0.02 ug/l 92 93 65-125 0 30 <br /> Batch number: 050800002A Sample number(s) : 4485213,4485216-4485218 <br /> TPH - DRO CA LUFT (Waters) N.D. 25. ug/l 74 79 64-125 7 20 <br /> Batch number: 0508OA33A Sample number(s) : 4485204-4485211,4485214-4485215,4485219 <br /> TPH-GRO - Soils N.D. 1.0 mg/kg 81 67-119 <br /> Benzene N.D. 0.005 mg/kg 92 85-115 <br /> Toluene N.D. 0.005 mg/kg 91 81-119 <br /> Ethylbenzene N.D. 0.005 mg/kg 90 85-115 <br /> Total Xylenes N.D. 0.02 mg/kg 91 85-115 <br /> MTBE N.D. 0.05 mg/kg 87 71-118 <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 />