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Lancaster �4 <br /> Laboratories nalys►s 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 2 <br /> REVISED <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1171047 <br /> Reported: 12/07/09 at 01:33 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 Program Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: G093251AA Sample number(s) : 5837120-5837124 <br /> Benzene N.D. 0.1 ug/l 101 80-120 <br /> Ethylbenzene N.D. 1. ug/l 102 80-120 <br /> Toluene N.D. 1. ug/l 102 80-120 <br /> Xylene (Total) N.D. 1. ug/l 103 80-120 <br /> Batch number: 09320WACO26 Sample number(s) : 5837120-5837121,5837123-5837124 <br /> Acenaphthene N.D. 0.01 ug/l 117* 114 68-116 3 30 <br /> Acenaphthylene N.D. 0.01 ug/l 119 118 69-126 1 30 <br /> Anthracene N.D. 0.01 ug/l 122 110 68-122 11 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 111 107 80-119 4 30 <br /> Benzo(a)pyrene N.D. 0.003 ug/l 109 108 70-118 2 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 118 121 75-123 2 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 107 103 72-139 3 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 117 105 72-122 11 30 <br /> Chrysene N.D. 0.01 ug/l 113 108 80-124 5 30 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 113 109 60-138 4 30 <br /> Fluoranthene N.D. 0.01 ug/l 128 117 67-133 9 30 <br /> Fluorene N.D. 0.01 ug/l 110 105 49-145 5 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 115 109 66-136 5 30 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/l 128 132* 70-130 3 30 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/l 114 121 70-130 6 30 <br /> Naphthalene N.D. 0.05 ug/l 102* 100 68-100 2 30 <br /> Phenanthrene N.D. 0.01 ug/l 118 106 71-124 11 30 <br /> Pyrene N.D. 0.01 ug/l 104 102 50-149 2 30 <br /> Batch number: 093180001A Sample number(s) : 5837120-5837121,5837123-5837124 <br /> TPH-DRO water C10-C25 N.D. 50. ug/l 66 61 54-122 8 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 %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: G093251AA Sample number(s) : 5837120-5837124 UNSPK: P837913 <br /> Benzene 104 108 87-126 3 30 <br /> Ethylbenzene 105 109 80-140 4 30 <br /> Toluene 105 111 83-127 6 30 <br /> Xylene (Total) 105 110 84-125 5 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 />