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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 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 978150 <br /> Reported: 03/03/06 at 11:16 AM <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: 060470002A Sample number(s) : 4710124-4710130 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 73 59-131 <br /> Batch number: 06047WAH026 Sample number(s) 4710124-4710130 <br /> Naphthalene N.D. 0.01 ug/l 97 61-121 <br /> Acenaphthylene N.D. 0.02 ug/l 102 64-116 <br /> Acenaphthene N.D. 0.01 ug/l 104 78-118 <br /> Fluorene N.D. 0.01 ug/l 101 64-134 <br /> Phenanthrene N.D. 0.01 ug/l 98 79-118 <br /> Anthracene N.D. 0.02 ug/l 91 73-117 <br /> Fluoranthene N.D. 0.01 ug/l 103 61-131 <br /> Pyrene N.D. 0.02 ug/l 101 67-129 <br /> Benzo(a)anthracene N.D. 0.02 ug/l 97 63-119 <br /> Chrysene N.D. 0.02 ug/l 99 80-125 <br /> Benzo(b)fluoranthene N.D. 0.02 ug/l 101 62-124 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 89 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 92 60-123 <br /> Dibenz(a,h)anthracene N.D. 0.02 ug/l 92 68-129 <br /> Benzo(g,h,i)perylene N.D. 0.02 ug/l 88 62-126 <br /> Batch number: 06048A15A Sample number(s) : 4710123 <br /> Benzene N.D. 0.5 ug/l 97 104 86-119 7 30 <br /> Toluene N.D. 0.5 ug/l 95 102 82-119 8 30 <br /> Ethylbenzene N.D. 0.5 ug/l 92 99 81-119 8 30 <br /> Total Xylenes N.D. 1.5 ug/l 96 103 82-120 8 30 <br /> Batch number: 06052A54A Sample number(s) : 4710124-4710126,4710129-4710130 <br /> TPH-GRO - Waters N.D. 50. ug/l 116 110 70-130 5 30 <br /> Benzene N.D. 0.5 ug/l 94 94 86-119 0 30 <br /> Toluene N.D. 0.5 ug/l 98 97 82-119 1 30 <br /> Ethylbenzene N.D. 0.5 ug/l 98 99 81-119 0 30 <br /> Total Xylenes N.D. 1.5 ug/l 100 100 82-120 0 30 <br /> Batch number: 06052A54C Sample number(s) : 4710127-4710128 <br /> TPH-GRO - Waters N.D. 50. ug/l 116 110 70-130 5 30 <br /> Benzene N.D. 0.5 ug/l 94 94 86-119 0 30 <br /> Toluene N.D. 0.5 ug/l 98 97 82-119 1 30 <br /> Ethylbenzene N.D. 0.5 ug/l 98 99 81-119 0 30 <br /> Total Xylenes N.D. 1.5 ug/l 100 100 82-120 0 30 <br /> Batch number: 060530012A Sample number(s) : 4710125,4710130 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 50. ug/l 78 49-120 <br /> Sample Matrix Quality Control <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 />