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Lancaster <br /> j Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425.717-656-2300 Fax:717-656.2681•WW W.lancastertabs.com <br /> Page 1 of 4 <br /> ' Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1177787 <br /> ' Reported: 01/21/10 at 03 :12 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 /> 1 method. <br /> Laboratory Compliance Quality Control <br /> ' Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result Program Vnita %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: 10009WAE026 Sample number(s) : 5878985-5878996 <br /> ' Acenaphthene N.D. 0.010 ug/1 95 68-116 <br /> Acenaphthylene N.D. 0.010 ug/l 88 69-126 <br /> Anthracene N.D. 0.010 ug/l 93 68-122 <br /> Benzo(a)anthracene N.D. 0.010 ug/1 89 80-119 <br /> Benzo(a)pyrene N.D. 0.0030 ug/1 85 70-118 <br /> ' Benz6(b)fluoranthene N.D. 0.010 ug/l 90 75-123 <br /> Benzo(g,h,i)perylene N.D. 0.010 ug/l 91 72-139 <br /> Benzo(k)flucranthene N.D. 0.010 ug/l 95 72-122 <br /> Chrysene N.D. 0.010 ug/l 95 80-124 <br /> Dibenz(a,h)anthracene N.D. 0.0030 ug/1 103 60-138 <br /> Fluoranthene N.D. 0.010 ug/l 100 67-133 <br /> Fluorene N.D. 0.010 ug/l 99 49-145 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.010 ug/l 96 66-136 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/1 76 70-130 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/1 67* 70-130 <br /> Naphthalene N.D. 0.050 ug/1 78 68-100 <br /> ' Phenanthrene N.D. 0.010 ug/l 98 71-124 <br /> Pyrene N.D. 0.010 ug/l 64 50-149 <br /> Batch number: 100090000A Sample number(s) : 5678985-5878990,5878992-5878996 <br /> TPH-DRO water C10-C25 N.D. 50. ug/1 85 83 54-122 3 20 <br /> ' Batch number: 100110014A Sample number(s) : 5878991 <br /> TPH-DRO water C10-C25 60 50, ug/l 95 85 54-122 11 20 <br /> Batch number: 100190002A Sample number(s) : 5878986,5878988,5878995 <br /> TPH-DRO water C10-C25 w/Si Gel N.D. 32. ug/1 74 79 45-114 7 20 <br /> Batch number: 100190003A Sample number(s) 5878991 <br /> TPH-DRO water C10-C25 w/Si Gel N.D. 32. ug/1 83 76 45-114 6 20 <br /> Sample Matrix <br /> p 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 MSI) MS/MSD RPD EKGs DUP Di1P Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Marc <br /> Batch number: 10009WAE026 Sample number(s) : 5876985-5678996 UNSPK: 5878992 <br /> ' Acenaphthene 91 100 64-110 9 30 <br /> Acenaphthylene 88 93 69-111 4 30 <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 /> 1 <br />