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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: 1083640 <br /> Reported: 04/10/08 at 04:09 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 /> Pyrene 90 91 37-154 1 30 <br /> Benzo(a)anthracene 93 93 48-148 1 30 <br /> Chrysene 97 96 53-138 1 30 <br /> Benzo(b)fluoranthene 99 98 42-145 1 30 <br /> Benzo(k)fluoranthene 97 99 40-156 2 30 <br /> Benzo(a)pyrene 87 89 52-131 1 30 <br /> Indeno(1,2,3-cd)pyrene 94 95 43-135 2 30 <br /> Dibenz(a,h)anthracene 93 94 31-135 1 30 <br /> Benzo(g,h,i)perylene 95 96 33-141 2 30 <br /> Batch number: B080932AA Sample number(s) 5315768-5315774 UNSPK: 5315768 <br /> Benzene 85 66-112 <br /> Toluene 84 58-116 <br /> Ethylbenzene 78 54-116 <br /> Xylene (Total) 79 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: 080950018A <br /> Chlorobenzene orthoterphenyl <br /> 5315768 91 77 <br /> 5315769 84 73 <br /> 5315770 56 58 <br /> 5315771 73 70 <br /> 5315772 83 78 <br /> 5315773 0* 184* <br /> 5315774 89 77 <br /> Blank 84 74 <br /> LCS 93 87 <br /> LCSD 100 90 <br /> MS 84 85 <br /> Limits: 37-125 47-145 <br /> Analysis Name: PAHs in soils by SIM <br /> Batch number: 08096SLD026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5315768 89 98 99 <br /> 5315769 95 103 97 <br /> 5315770 93 104 101 <br /> 5315771 92 100 97 <br /> 5315772 98 102 99 <br /> 5315773 129 83 103 <br /> 5315774 88 98 92 <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 />