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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: 1122196 <br /> Reported: 12/12/08 at 01:38 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 %REC %REC Limits RPD MAX Conc Conc RPD Max_ <br /> Anthracene 72 78 34-161 8 30 <br /> Fluoranthene 76 88 26-166 15 30 <br /> Pyrene 70 80 37-154 14 30 <br /> Benzo(a)anthracene 75 85 25-166 12 30 <br /> Chrysene 75 87 14-174 15 30 <br /> Benzo(b)fluoranthene 75 94 17-182 23 30 <br /> Benzo(k)fluoranthene 73 93 40-156 24 30 <br /> Benzo(a)pyrene 69 78 34-156 12 30 <br /> Indeno(1,2,3-cd)pyrene 78 97 8-164 22 30 <br /> Dibenz(a,h)anthracene 82 101 16-159 21 30 <br /> Benzo(g,h,i)perylene 75 94 33-141 22 30 <br /> Batch number: A083391AA Sample number(s) : 5542386-5542390 UNSPK: P542707 <br /> Benzene 76 66-112 <br /> Toluene 66 58-116 <br /> Ethylbenzene 57 54-116 <br /> Xylene (Total) 57 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: Custom TPH with Ranges (soil) <br /> Batch number: 083380010A <br /> Chlorobenzene Orthoterphenyl <br /> 5542386 89 92 <br /> 5542387 93 93 <br /> 5542388 90 92 <br /> 5542389 91 92 <br /> 5542390 106 265* <br /> Blank 89 97 <br /> LCS 98 101 <br /> MS 91 101 <br /> MSD 92 101 <br /> Limits: 37-125 59-129 <br /> Analysis Name: PAHs in soils by SIM <br /> Batch number: 08338SLB026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5542386 89 86 97 <br /> 5542387 86 84 94 <br /> 5542388 90 86 97 <br /> 5542389 93 88 100 <br /> 5542390 335* 116 116 <br /> Blank 89 87 95 <br /> LCS 87 87 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 />