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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 /> REVISED <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 952431 <br /> Reported: 09/09/05 at 01:16 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 105 78 67-112 14 30 <br /> Acenaphthylene 116* 104 73-110 11 30 <br /> Acenaphthene 113 90 65-115 10 30 <br /> Fluorene 107 103 68-116 3 30 <br /> Phenanthrene 101 100 62-119 1 30 <br /> Anthracene 107 107 1-172 1 30 <br /> Fluoranthene 117 106 47-129 9 30 <br /> Pyrene 108 119 1-167 9 30 <br /> Benzo(a)anthracene 119 111 1-147 7 30 <br /> Chrysene 116 109 42-132 6 30 <br /> Benzo(b)fluoranthene 88 93 25-133 5 30 <br /> Benzo(k)fluoranthene 91 97 23-134 6 30 <br /> Benzo(a)pyrene 88 93 1-152 6 30 <br /> Indeno(1,2,3-cd)pyrene 84 88 1-142 5 30 <br /> Dibenz(a,h)anthracene 87 93 12-116 7 30 <br /> Benzo(g,h,i)perylene 85 90 1-155 6 30 <br /> Batch number: 05208A08A Sample number(s) : 4569201 <br /> TPH-GRO - Waters 119 63-154 <br /> Batch number: 05208A08B Sample number(s) : 4569199-4569200,4569202-4569203 <br /> TPH-GRO - Waters 119 63-154 <br /> Batch number: Z052064AA Sample number(s) : 4569199-4569203 <br /> Benzene 98 113 83-128 15 30 <br /> Toluene 100 116 83-127 15 30 <br /> Ethylbenzene 99 114 82-129 15 30 <br /> Xylene (Total) 94 110 82-130 15 30 <br /> Surrogate Quality Control <br /> Analysis Name: Selected SVOAs by 8270 SIM <br /> Batch number: 05204WAF026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 4569199 117 99 103 <br /> 4569201 118 95 105 <br /> 4569202 110 99 113 <br /> 4569203 283* 231* 106 <br /> Blank 111 102 102 <br /> LCS 110 102 103 <br /> MS 126 109 94 <br /> MSD 108 97 113 <br /> Limits: 52-148 48-131 49-140 <br /> Analysis Name: TPH-DRO (C10-C25) Water <br /> Batch number: 052060016A <br /> Orthoterphenyl <br /> 4569199 86 <br /> 4569201 62 <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 />