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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 4 <br /> REVISED <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1105583 <br /> Reported: 09/04/08 at 01:58 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 /> Acenaphthylene 2614* 2658* 42-141 2 30 <br /> Acenaphthene -549 -331 37-145 4 30 <br /> (2) (2) <br /> Fluorene -2769 -1635 51-142 3 30 <br /> (2) (2) <br /> Phenanthrene -388 2170 42-144 5 30 <br /> (2) (2) <br /> Anthracene -306 -245 34-161 7 30 <br /> (2) (2) <br /> Fluoranthene 213 (2) 373 (2) 26-166 6 30 <br /> Pyrene 742 (2) 946 (2) 37-154 5 30 <br /> Benzo(a)anthracene -30 (2) -116 25-166 8 30 <br /> (2) <br /> Chrysene -281 35 (2) 14-174 6 30 <br /> (2) <br /> Benzo(b)fluoranthene 34 (2) 169 (2) 17-182 6 30 <br /> Benzo(k)fluoranthene 0* 0* 40-156 0 30 <br /> Benzo(a)pyrene 3 (2) 75 (2) 34-156 6 30 <br /> Indeno(1,2,3-cd)pyrene 231* 236* 8-164 2 30 <br /> Dibenz(a,h)anthracene 103 90 16-159 4 30 <br /> Benzo(g,h,i)perylene 28 (2) 56 (2) 33-141 6 30 <br /> Batch number: 082330007A Sample number(s) : 5442219-5442229 UNSPK: 5442219 <br /> Total TPH 86 84 49-123 3 20 <br /> Batch number: B082311AA Sample number(s) : 5442219-5442221,5442224-5442226,5442228-5442229 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: 08231SLGO26 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5442219 88 92 98 <br /> 5442220 90 98 107 <br /> 5442221 84 91 104 <br /> 5442222 15100* 1718* 271* <br /> 5442223 484* 96 113 <br /> 5442224 91 93 103 <br /> 5442225 80 85 95 <br /> 5442226 86 89 96 <br /> 5442227 331* 95 98 <br /> 5442228 180* 99 100 <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 />