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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: 1121601 <br /> Reported: 12/09/08 at 11:17 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 /> Acenaphthylene 79 79 42-141 1 30 <br /> Acenaphthene 84 86 37-145 3 30 <br /> Fluorene 89 92 51-142 3 30 <br /> Phenanthrene 92 92 42-144 0 30 <br /> Anthracene 80 79 34-161 0 30 <br /> Fluoranthene 90 89 26-166 0 30 <br /> Pyrene 86 88 37-154 2 30 <br /> Benzo(a)anthracene 87 89 25-166 2 30 <br /> Chrysene 88 90 14-174 3 30 <br /> Benzo(b)fluoranthene 98 101 17-182 2 30 <br /> Benzo(k)fluoranthene 91 92 40-156 0 30 <br /> Benzo(a)pyrene 79 80 34-156 1 30 <br /> Indeno(1,2,3-cd)pyrene 62 64 8-164 4 30 <br /> Dibenz(a,h)anthracene 65 68 16-159 5 30 <br /> Benzo(g,h,i)perylene 53 55 33-141 4 30 <br /> Batch number: X083382AA Sample number(s) : 5539180-5539183 UNSPK: P541741 <br /> Benzene 116* 66-112 <br /> Toluene 117* 58-116 <br /> Ethylbenzene 113 54-116 <br /> Xylene (Total) 109 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: 083310027A <br /> Chlorobenzene Orthoterphenyl <br /> 5539179 180* 143* <br /> 5539180 91 97 <br /> 5539181 92 100 <br /> 5539182 95 95 <br /> 5539183 93 102 <br /> Blank 90 94 <br /> LCS 98 103 <br /> LCSD 97 104 <br /> Limits: 37-125 59-129 <br /> Analysis Name: PAHs in soils by SIM <br /> Batch number: 08337SLD026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5539179 738* 115 128 <br /> 5539180 89 90 107 <br /> 5539181 86 88 106 <br /> 5539182 90 92 110 <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 />