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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 3 of 5 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1120845 <br /> Reported: 12/09/08 at 11:16 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 /> (2) (2) <br /> Anthracene -8686 -8110 34-161 37* 30 <br /> (2) (2) <br /> Fluoranthene -61817 -58167 26-166 28 30 <br /> (2) (2) <br /> Pyrene -43524 -39497 37-154 31* 30 <br /> (2) (2) <br /> Benzo(a)anthracene -21958 -19991 25-166 25 30 <br /> (2) (2) <br /> Chrysene -19496 -17260 14-174 25 30 <br /> (2) (2) <br /> Benzo(b)fluoranthene -19497 -16848 17-182 24 30 <br /> (2) (2) <br /> Benzo(k)fluoranthene -9121 -7786 40-156 28 30 <br /> (2) (2) <br /> Benzo(a)pyrene -16767 -15046 34-156 23 30 <br /> (2) (2) <br /> Indeno(1,2,3-cd)pyrene -4454 -4098 8-164 12 30 <br /> (2) (2) <br /> Dibenz(a,h)anthracene -1513 -1376 16-159 13 30 <br /> (2) (2) <br /> Benzo(g,h,i)perylene -3737 -3432 33-141 11 30 <br /> (2) (2) <br /> Batch number: 08337SLD026 Sample number(s) : 5533800 UNSPK: P539183 <br /> Naphthalene 78 79 27-145 1 30 <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: A083281AA Sample number(s) : 5533797-5533805 UNSPK: 5533797 <br /> Benzene 111 66-112 <br /> Toluene 105 58-116 <br /> Ethylbenzene 100 54-116 <br /> Xylene (Total) 101 52-117 <br /> Surrogate Quality Control <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 />