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tiff e u rof i n s <br /> Lancaster Analysis Report <br /> Laboratories <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 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1292577 <br /> Reported: 04/05/12 at 04 :09 PM <br /> AnalYsis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: B120611AB Sample number(s) 6563925-6563926,6563928-6563929 UNSPK: P560472 <br /> Benzene 91 55-143 <br /> Ethylbenzene 73 44-141 <br /> Toluene 86 50-146 <br /> Xylene (Total) 72 44-136 <br /> Batch number: 12063SLA026 Sample number(s) 6563925-6563929 UNSPK: P557822 <br /> Acenaphthene 84 79 23-148 6 30 <br /> Acenaphthylene 69 64 63-120 8 30 <br /> Anthracene 85 73 56-121 15 30 <br /> Benzo(a)anthracene 89 82 32-135 9 30 <br /> Benzo(a)pyrene 91 85 57-117 7 30 <br /> Benzo(b)fluoranthene 97 92 26-142 6 30 <br /> Benzo(g,h,i)perylene 87 77 33-141 12 30 <br /> Benzo(k)fluoranthene 82 76 49-145 8 30 <br /> Chrysene 86 78 23-138 10 30 <br /> Dibenz(a,h)anthracene 91 82 29-138 11 30 <br /> Fluoranthene 89 80 47-135 11 30 <br /> Fluorene 88 81 65-116 8 30 <br /> Indeno(1,2,3-cd)pyrene 91 82 25-136 11 30 <br /> 1-Methylnaphthalene 83 76 25-142 9 30 <br /> 2-Methylnaphthalene 78 72 49-134 8 30 <br /> Naphthalene 84 78 31-148 8 30 <br /> Phenanthrene 86 79 37-134 9 30 <br /> Pyrene 82 75 31-120 9 30 <br /> Batch number: 120650024A Sample number(s) 6563925-6563929 UNSPK: 6563925 BKG: 6563925 <br /> C10-C36 N.D. N.D. 0 (1) 20 <br /> Total TPH 78 10-168 N.D. N.D. 0 (1) 20 <br /> Surrogate Quality Control <br /> Surrogate recoveries which are outside of the QC window are confirmed <br /> unless attributed to dilution or otherwise noted on the Analysis Report. <br /> Analysis Name: 8260 Ext. Soil Master w/GRO <br /> Batch number: B120611AB <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 6563925 101 97 98 92 <br /> 6563926 102 99 98 92 <br /> 6563928 104 98 98 91 <br /> 6563929 103 101 98 91 <br /> Blank 99 97 97 94 <br /> LCS 101 97 99 100 <br /> LCSD 101 104 99 99 <br /> MS 103 104 101 97 <br /> Limits: 71-114 70-109 70-123 70-111 <br /> Analysis Name: 8260 Ext. Soil Master w/GRO <br /> Batch number: R120701AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 6563927 82 86 82 99 <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 unspiked result was more than four times the spike added. <br />