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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 2 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 964267 <br /> Reported: 11/04/05 at 04:35 PM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Naphthalene 95 99 67-112 4 30 <br /> Acenaphthylene 110 114* 73-110 4 30 <br /> Acenaphthene 39* 33* 65-115 16 30 <br /> Fluorene 102 107 68-116 5 30 <br /> Phenanthrene 107 104 62-119 3 30 <br /> Anthracene 0* 0* 1-172 0 30 <br /> Fluoranthene 110 111 47-129 1 30 <br /> Pyrene 3 3 1-167 2 30 <br /> Benzo(a)anthracene 16 14 1-147 12 30 <br /> Chrysene 101 99 42-132 2 30 <br /> Benzo(b)fluoranthene 98 105 25-133 8 30 <br /> Benzo(k)fluoranthene 65 82 23-134 22 30 <br /> Benzo(a)pyrene 10 10 1-152 0 30 <br /> Indeno(1,2,3-cd)pyrene 47 55 1-142 15 30 <br /> Dibenz(a,h)anthracene 59 67 12-116 13 30 <br /> Benzo(g,h,i)perylene 21 23 1-155 11 30 <br /> Batch number: 052970005A Sample number(s) : 4630385-4630387,4630392-4630394 <br /> TPH-DRO (C10-C25) Water 27* 70 59-128 70* 20 <br /> Batch number: 05297A08A Sample number(s) : 4630385-4630390,4630392-4630393 <br /> TPH-GRO - Waters 94 72 63-154 26 30 <br /> Batch number: 05298AO8A Sample number(s) : 4630394 <br /> TPH-GRO - Waters 118 63-154 <br /> Batch number: 053010005A Sample number(s) : 4630388-4630390 <br /> TPH-DRO (C10-C25) Water 80 83 59-128 3 20 <br /> Batch number: Z052974AA Sample number(s) : 4630385-4630394 <br /> Benzene 110 110 83-128 0 30 <br /> Toluene 112 112 83-127 0 30 <br /> Ethylbenzene 114 115 82-129 1 30 <br /> Xylene (Total) 111 112 82-130 1 30 <br /> Surrogate Quality Control <br /> Analysis Name: Selected SVOAs by 8270 SIM <br /> Batch number: 05295WAD026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 4630385 113 105 103 <br /> 4630386 107 96 108 <br /> 4630387 104 95 111 <br /> 4630388 118 96 108 <br /> 4630389 103 99 109 <br /> 4630390 108 100 107 <br /> 4630392 110 98 120 <br /> 4630393 108 104 106 <br /> 4630394 107 108 110 <br /> Blank 104 91 110 <br /> LCS 110 98 108 <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 />