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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 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1050497 <br /> Reported: 08/24/07 at 02:18 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 Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL** LOO Units %REC %REC Limits RPD RPD Max <br /> Batch number: 072210010A Sample number(s) : 5123037-5123042 <br /> TPH-DRO (C10-C25) Water N.D. 29. 100. ug/l 78 57-118 <br /> Batch number: 07221WABO26 Sample number(s) : 5123037-5123042 <br /> Naphthalene N.D. 0.010 0.050 ug/l 97 68-120 <br /> Acenaphthylene N.D. 0.010 0.050 ug/l 83 65-113 <br /> Acenaphthene N.D. 0.010 0.050 ug/l 91 71-122 <br /> Fluorene N.D. 0.010 0.050 ug/l 82 71-124 <br /> Phenanthrene N.D. 0.010 0.050 ug/l 93 70-125 <br /> Anthracene N.D. 0.010 0.050 ug/l 89 64-126 <br /> Fluoranthene N.D. 0.010 0.050 ug/l 95 69-131 <br /> Pyrene N.D. 0.010 0.050 ug/l 93 69-130 <br /> Benzo(a)anthracene N.D. 0.010 0.050 ug/l 93 68-129 <br /> Chrysene N.D. 0.010 0.050 ug/l 95 69-128 <br /> Benzo(b)fluoranthene N.D. 0.010 0.050 ug/l 87 56-138 <br /> Benzo(k)fluoranthene N.D. 0.010 0.050 ug/l 87 62-135 <br /> Benzo(a)pyrene N.D. 0.010 0.050 ug/l 85 61-124 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.010 0.050 ug/l 101 62-129 <br /> Dibenz(a,h)anthracene N.D. 0.010 0.050 ug/l 92 39-130 <br /> Benzo(g,h,i)perylene N.D. 0.010 0.050 ug/l 102 64-126 <br /> Batch number: 072290010A Sample number(s) : 5123037 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. 100. ug/l 64 57-118 <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: 072210010A Sample number(s) : 5123037-5123042 UNSPK: 5123039 <br /> TPH-DRO (C10-C25) Water 84 72 59-128 19 20 <br /> Batch number: 07221WABO26 Sample number(s) 5123037-5123042 UNSPK: 5123039 <br /> Naphthalene 100 103 61-128 2 30 <br /> Acenaphthylene 90 92 59-128 3 30 <br /> Acenaphthene 97 100 69-120 3 30 <br /> Fluorene 94 96 61-129 3 30 <br /> Phenanthrene 100 102 71-117 2 30 <br /> Anthracene 93 95 54-120 2 30 <br /> Fluoranthene 101 104 55-133 2 30 <br /> Pyrene 105 106 58-133 1 30 <br /> Benzo(a)anthracene 95 97 52-135 2 30 <br /> Chrysene 98 100 52-134 2 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 />