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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 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1171807 <br /> Reported: 12/04/09 at 01:10 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 Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL** Loo Units %REC %REC Limits RPD RPD Max <br /> Batch number: A093291AA Sample number(s) : 5842483-5842484 <br /> Benzene N.D. 0.0005 0.005 mg/kg 96 98 80-120 2 30 <br /> Ethylbenzene N.D. 0.001 0.005 mg/kg 95 98 80-120 3 30 <br /> Toluene N.D. 0.001 0.005 mg/kg 96 98 80-120 3 30 <br /> Xylene (Total) N.D. 0.001 0.005 mg/kg 93 95 80-120 3 30 <br /> Batch number: B093261AA Sample number(s) : 5842476-5842480,5842482 <br /> Benzene N.D. 0.0005 0.005 mg/kg 91 80-120 <br /> Ethylbenzene N.D. 0.001 0.005 mg/kg 92 80-120 <br /> Toluene N.D. 0.001 0.005 mg/kg 92 80-120 <br /> Xylene (Total) N.D. 0.001 0.005 mg/kg 92 80-120 <br /> Batch number: Q093272AA Sample number(s) : 5842481 <br /> Benzene N.D. 0.025 0.25 mg/kg 84 82 80-120 2 30 <br /> Ethylbenzene N.D. 0.050 0.25 mg/kg 87 86 80-120 1 30 <br /> Toluene N.D. 0.050 0.25 mg/kg 90 89 80-120 1 30 <br /> Xylene (Total) N.D. 0.050 0.25 mg/kg 90 88 80-120 2 30 <br /> Batch number: 09327SLK026 Sample number(s) : 5842476-5842484 <br /> Acenaphthene N.D. 0.00067 0.0017 mg/kg 92 59-102 <br /> Acenaphthylene N.D. 0.00033 0.0017 mg/kg 97 67-100 <br /> Anthracene N.D. 0.00033 0.0017 mg/kg 92 53-105 <br /> Benzo(a)anthracene N.D. 0.00067 0.0017 mg/kg 99 74-112 <br /> Benzo(a)pyrene N.D. 0.00067 0.0017 mg/kg 107 70-109 <br /> Benzo(b)fluoranthene N.D. 0.00067 0.0017 mg/kg 116 50-162 <br /> Benzo(g,h,i)perylene N.D. 0.00067 0.0017 mg/kg 109 44-138 <br /> Benzo(k)fluoranthene N.D. 0.00067 0.0017 mg/kg 116 47-158 <br /> Chrysene N.D. 0.00033 0.0017 mg/kg 98 79-111 <br /> Dibenz(a,h)anthracene N.D. 0.00067 0.0017 mg/kg 115 49-140 <br /> Fluoranthene N.D. 0.00067 0.0017 mg/kg 97 78-114 <br /> Fluorene N.D. 0.00067 0.0017 mg/kg 101 75-110 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.00067 0.0017 mg/kg 116 47-140 <br /> 1-Methylnaphthalene N.D. 0.00067 0.0017 mg/kg 98 72-114 <br /> 2-Methylnaphthalene N.D. 0.00067 0.0017 mg/kg 85 62-115 <br /> Naphthalene N.D. 0.00067 0.0017 mg/kg 91 67-105 <br /> Phenanthrene N.D. 0.00067 0.0017 mg/kg 100 76-109 <br /> Pyrene N.D. 0.00067 0.0017 mg/kg 99 56-121 <br /> Batch number: 093270018A Sample number(s) : 5842476-5842484 <br /> C10-C36 N.D. 4.0 12 mg/kg <br /> Total TPH N.D. 4.0 12 mg/kg 102 113 66-113 10 20 <br /> Sample Matrix Quality Control <br /> *-Outside of specification <br /> **-This limit was used in the evaluation of the final result for the blank <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 />