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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: 1083265 <br /> Reported: 04/10/08 at 06:55 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 /> Naphthalene 75 81 27-145 7 30 <br /> Acenaphthylene 72 79 42-141 8 30 <br /> Acenaphthene 79 85 37-145 8 30 <br /> Fluorene 87 95 51-142 8 30 <br /> Phenanthrene 85 90 18-169 6 30 <br /> Anthracene 81 89 34-161 9 30 <br /> Fluoranthene 104 113 36-165 9 30 <br /> Pyrene 77 84 37-154 9 30 <br /> Benzo(a)anthracene 91 101 48-148 10 30 <br /> Chrysene 94 105 53-138 11 30 <br /> Benzo(b)fluoranthene 89 102 42-145 14 30 <br /> Benzo(k)fluoranthene 90 97 40-156 8 30 <br /> Benzo(a)pyrene 81 91 52-131 12 30 <br /> Indeno(1,2,3-cd)pyrene 92 101 43-135 9 30 <br /> Dibenz(a,h)anthracene 94 103 31-135 9 30 <br /> Benzo(g,h,i)perylene 90 98 33-141 9 30 <br /> Batch number: B080911AB Sample number(s) : 5313623,5313625-5313629,5313631-5313632 UNSPK: 5313625 <br /> Benzene 108 66-112 <br /> Toluene 111 58-116 <br /> Ethylbenzene 112 54-116 <br /> Xylene (Total) 108 52-117 <br /> Surrogate Quality Control <br /> Surrogate recoveries which are outside of the 4C 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: 080910005A <br /> Chlorobenzene orthoterphenyl <br /> 5313623 56 88 <br /> 5313624 438* 270* <br /> 5313625 63 83 <br /> 5313626 70 82 <br /> 5313627 75 86 <br /> 5313628 122 87 <br /> 5313629 63 83 <br /> 5313630 266* 119 <br /> 5313631 59 87 <br /> 5313632 59 87 <br /> Blank 70 87 <br /> DUP 98 92 <br /> LCS 94 101 <br /> MS 92 102 <br /> Limits: 37-125 47-145 <br /> Analysis Name: PAHs in soils by SIM <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 />