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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: 1105764 <br /> Reported: 08/28/08 at 09:22 AM <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 /> Phenanthrene -152 716 (2) 42-144 101* 30 <br /> (2) <br /> Anthracene -20* 2467* 34-161 167* 30 <br /> Fluoranthene -267 879 (2) 26-166 104* 30 <br /> (2) <br /> Pyrene -217 969 (2) 37-154 96* 30 <br /> (2) <br /> Benzo(a)anthracene -215 482 (2) 25-166 100* 30 <br /> (2) <br /> Chrysene -188 595 (2) 14-174 103* 30 <br /> (2) <br /> Benzo(b)fluoranthene -228 395 (2) 17-182 101* 30 <br /> (2) <br /> Benzo(k)fluoranthene -46* 218* 40-156 79* 30 <br /> Benzo(a)pyrene -220 456 (2) 34-156 94* 30 <br /> (2) <br /> Indeno(1,2,3-cd)pyrene -31* 197* 8-164 68* 30 <br /> Dibenz(a,h)anthracene 56 128 16-159 44* 30 <br /> Benzo(g,h,i)perylene -49* 192* 33-141 68* 30 <br /> Batch number: 082330007A Sample number(s) : 5443248-5443250 UNSPK: P442219 <br /> Total TPH 86 84 49-123 3 20 <br /> Batch number: B082311AA Sample number(s) : 5443250 UNSPK: P442120 <br /> Benzene 97 66-112 <br /> Toluene 97 58-116 <br /> Ethylbenzene 97 54-116 <br /> Xylene (Total) 96 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: 08231SLD026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5443248 2027* 80 76 <br /> 5443249 238* 105 76 <br /> 5443250 109 95 89 <br /> Blank 91 95 105 <br /> LCS 88 91 101 <br /> MS 97 98 96 <br /> MSD 96 94 97 <br /> Limits: 53-152 63-129 66-142 <br /> Analysis Name: Custom TPH with Ranges (soil) <br /> Batch number: 082330007A <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 />