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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 2 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1036495 <br /> Reported: 05/11/07 at 11:27 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 Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL** LOO Units %REC %REC Limits RPD RPD Max <br /> Batch number: 071240009A Sample number(s) : 5044565-5044570 <br /> TPH-DRO (C10-C25) Water N.D. 29. 100. ug/l 76 57-118 <br /> Batch number: 07127WAA026 Sample number(s) 5044565-5044570 <br /> Naphthalene N.D. 0.01 0.05 ug/l 99 68-120 <br /> Acenaphthylene N.D. 0.01 0.05 ug/l 98 69-121 <br /> Acenaphthene N.D. 0.01 0.05 ug/l 102 71-122 <br /> Fluorene N.D. 0.01 0.05 ug/l 101 71-124 <br /> Phenanthrene N.D. 0.01 0.05 ug/l 101 70-125 <br /> Anthracene N.D. 0.01 0.05 ug/l 97 64-126 <br /> Fluoranthene N.D. 0.01 0.05 ug/l 104 69-131 <br /> Pyrene N.D. 0.01 0.05 ug/l 101 69-130 <br /> Benzo(a)anthracene N.D. 0.01 0.05 ug/l 104 68-129 <br /> Chrysene N.D. 0.01 0.05 ug/l 103 69-128 <br /> Benzo(b)fluoranthene N.D. 0.01 0.05 ug/l 98 56-138 <br /> Benzo(k)fluoranthene N.D. 0.01 0.05 ug/l 115 66-137 <br /> Benzo(a)pyrene N.D. 0.01 0.05 ug/l 100 63-131 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 0.05 ug/l 102 71-140 <br /> Dibenz(a,h)anthracene N.D. 0.01 0.05 ug/l 84 55-142 <br /> Benzo(g,h,i)perylene N.D. 0.01 0.05 ug/l 103 68-136 <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 <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: 071240009A Sample number(s) : 5044565-5044570 UNSPK: 5044566 <br /> TPH-DRO (C10-C25) Water 76 75 59-128 0 20 <br /> Batch number: 07127WAA026 Sample number(s) : 5044565-5044570 UNSPK: 5044566 <br /> Naphthalene 102 96 35-165 7 30 <br /> Acenaphthylene 100 97 59-128 3 30 <br /> Acenaphthene 103 100 69-120 3 30 <br /> Fluorene 100 101 61-129 1 30 <br /> Phenanthrene 102 102 76-124 0 30 <br /> Anthracene 98 96 17-153 3 30 <br /> Fluoranthene 103 103 57-129 1 30 <br /> Pyrene 100 102 44-146 0 30 <br /> Benzo(a)anthracene 105 106 52-135 1 30 <br /> Chrysene 103 101 58-129 2 30 <br /> Benzo(b)fluoranthene 98 102 42-141 4 30 <br /> Benzo(k)fluoranthene 115 106 40-139 9 30 <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 background result was more than four times the spike added. <br />