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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: 1029537 <br /> Reported: 03/26/07 at 10:32 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 MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number: 070780010A Sample number(s) : 5006057-5006059 <br /> C16-C32 N.D. 4.0 mg/kg <br /> C7-C16 N.D. 4.0 mg/kg <br /> Total TPH N.D. 4.0 mg/kg 90 68-115 <br /> Batch number: 070785708001 Sample number(s) : 5006059 <br /> Cadmium N.D. 0.0650 mg/kg 97 82-118 <br /> Chromium N.D. 0.583 mg/kg 113 79-121 <br /> Lead N.D. 0.441 mg/kg 97 82-118 <br /> Nickel N.D. 0.606 mg/kg 99 82-118 <br /> Zinc N.D. 0.655 mg/kg 99 79-121 <br /> Batch number: 07078SLB026 Sample number(s) : 5006057-5006058 <br /> Naphthalene N.D. 0.001 mg/kg 90 63-116 <br /> Acenaphthylene N.D. 0.0003 mg/kg 81 61-109 <br /> Acenaphthene N.D. 0.0007 mg/kg 93 65-120 <br /> Fluorene N.D. 0.0007 mg/kg 94 66-122 <br /> Phenanthrene N.D. 0.0007 mg/kg 96 64-118 <br /> Anthracene N.D. 0.0003 mg/kg 89 52-128 <br /> Fluoranthene N.D. 0.0007 mg/kg 104 57-128 <br /> Pyrene N.D. 0.0007 mg/kg 102 65-127 <br /> Benzo(a)anthracene N.D. 0.0007 mg/kg 98 59-134 <br /> Chrysene N.D. 0.0003 mg/kg 99 57-122 <br /> Benzo(b)fluoranthene N.D. 0.001 mg/kg 101 53-146 <br /> Benzo(k)fluoranthene N.D. 0.001 mg/kg 91 62-128 <br /> Benzo(a)pyrene N.D. 0.0007 mg/kg 87 59-126 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.001 mg/kg 83 64-138 <br /> Dibenz(a,h)anthracene N.D. 0.001 mg/kg 68 51-143 <br /> Benzo(g,h,i)perylene N.D. 0.001 mg/kg 83 62-135 <br /> Batch number: A070781AA Sample number(s) : 5006057-5006059 <br /> Benzene N.D. 0.0005 mg/kg 114 84-115 <br /> Toluene N.D. 0.001 mg/kg 108 81-116 <br /> Ethylbenzene N.D. 0.001 mg/kg 102 82-115 <br /> Xylene (Total) N.D. 0.001 mg/kg 105 82-117 <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: 070780010A Sample number(s) : 5006057-5006059 UNSPK: P005099 <br /> Total TPH 6* 462* 49-123 121* 20 <br /> *-Outside of specification <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 />