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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 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1204354 <br /> Reported: 09/03/10 at 10:15 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 Program Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: G102081AA Sample number(s) : 6039950-6039953 <br /> Benzene N.D. 0.1 ug/l 99 80-120 <br /> Ethylbenzene N.D. 1.0 ug/l 102 80-120 <br /> Toluene N.D. 1.0 ug/l 103 80-120 <br /> Xylene (Total) N.D. 1.0 ug/l 104 80-120 <br /> Batch number: 10205WAI026 Sample number(s) : 6039951-6039953 <br /> Acenaphthene N.D. 0.010 ug/1 81 90 68-116 10 30 <br /> Acenaphthylene N.D. 0.010 ug/l 93 97 69-126 5 30 <br /> Anthracene N.D. 0.010 ug/l 93 100 68-122 7 30 <br /> Benzo(a)anthracene N.D. 0.010 ug/l 92 100 80-119 9 30 <br /> Benzo(a)pyrene N.D. 0.0030 ug/l 69* 75 70-118 9 30 <br /> Benzo(b)fluoranthene N.D. 0.010 ug/l 68* 71* 75-123 4 30 <br /> Benzo(g,h,i)perylene N.D. 0.010 ug/l 81 87 72-139 8 30 <br /> Benzo(k)fluoranthene N.D. 0.010 ug/l 68* 74 72-122 8 30 <br /> Chrysene N.D. 0.010 ug/l 93 103 80-124 10 30 <br /> Dibenz(a,h)anthracene N.D. 0.0030 ug/l 89 96 60-138 7 30 <br /> Fluoranthene N.D. 0.010 ug/l 97 100 67-133 2 30 <br /> Fluorene N.D. 0.010 ug/l 90 100 72-133 10 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.010 ug/l 86 92 82-132 7 30 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/l 98 108* 41-103 10 30 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/l 85 94 34-94 10 30 <br /> Naphthalene N.D. 0.050 ug/l 97 103* 68-100 6 30 <br /> Phenanthrene N.D. 0.010 ug/l 89 97 71-124 8 30 <br /> Pyrene N.D. 0.010 ug/1 92 99 71-114 7 30 <br /> Batch number: 102050008A Sample number(s) : 6039951-6039953 <br /> TPH-DRO water C10-C25 N.D. 50. ug/l 95 94 54-122 1 20 <br /> Batch number: 102140001A Sample number(s) : 6039951-6039952 <br /> TPH-DRO water C10-C25 w/Si Gel N.D. 32. ug/l 85 84 45-114 1 20 <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 RE %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: G102081AA Sample number(s) : 6039950-6039953 UNSPK: P041795 <br /> Benzene 112 105 87-126 6 30 <br /> Ethylbenzene 114 107 80-140 6 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 />