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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 2 of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1082732 <br /> Reported: 04/02/08 at 01:09 PM <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 %RBC %REC Limits RPD MAX Conc Conc RPD Max <br /> Fluorene 89 91 51-142 3 30 <br /> Phenanthrene 87 88 18-169 1 30 <br /> Anthracene 88 91 34-161 3 30 <br /> Fluoranthene 102 104 36-165 2 30 <br /> Pyrene 79 79 37-154 1 30 <br /> Benzo(a)anthracene 84 86 48-148 2 30 <br /> Chrysene 89 90 53-138 2 30 <br /> Benzo(b)fluoranthene 91 93 42-145 2 30 <br /> Benzo(k)fluoranthene 84 86 40-156 2 30 <br /> Benzo(a)pyrene 82 83 52-131 1 30 <br /> Indeno(1,2,3-cd)pyrene 89 90 43-135 1 30 <br /> Dibenz(a,h)anthracene 91 92 31-135 1 30 <br /> Benzo(g,h,i)perylene 86 87 33-141 1 30 <br /> Batch number: 080880024A Sample number(s) : 5310146-5310151 UNSPK: 5310146 BKG: 5310146 <br /> Total TPH 82 49-123 N.D. N.D. 0 (1) 20 <br /> C10-C36 N.D. N.D. 0 (1) 20 <br /> Batch number: A080851AA Sample number(s) 5310146,5310148-5310149,5310151 UNSPK: P307582 <br /> Benzene 93 66-112 <br /> Toluene 90 58-116 <br /> Ethylbenzene 88 54-116 <br /> Xylene (Total) 88 52-117 <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: PAHs in soils by SIM <br /> Batch number: 08087SLA026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5310146 98 86 99 <br /> 5310147 5576* 218* 222* <br /> 5310148 108 89 92 <br /> 5310149 106 91 99 <br /> 5310150 121 85 110 <br /> 5310151 109 90 96 <br /> Blank 101 90 95 <br /> LCS 105 93 99 <br /> MS 108 91 99 <br /> MSD 108 95 101 <br /> Limits: 53-152 63-129 66-142 <br /> Analysis Name: Custom TPH with Ranges (soil) <br /> Batch number: 080880024A <br /> Chlorobenzene orthoterphenyl <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 />