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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: 1135074 <br /> Reported: 03/19/09 at 10:48 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 96 93 69-111 2 30 <br /> Acenaphthene 98 94 64-110 4 30 <br /> Fluorene 92 86 50-122 6 30 <br /> Phenanthrene 102 98 70-114 4 30 <br /> Anthracene 102 100 10-151 2 30 <br /> Fluoranthene 103 98 63-121 5 30 <br /> Pyrene 85 88 45-114 4 30 <br /> Benzo(a)anthracene 103 104 33-132 0 30 <br /> Chrysene 110 110 41-135 0 30 <br /> Benzo(b)fluoranthene 99 104 14-156 5 30 <br /> Benzo(k)fluoranthene 107 97 30-127 9 30 <br /> Benzo(a)pyrene 79 90 10-133 13 30 <br /> Indeno(1,2,3-cd)pyrene 92 97 10-139 5 30 <br /> Dibenz(a,h)anthracene 97 100 10-144 3 30 <br /> Benzo(g,h,i)perylene 73 80 10-127 9 30 <br /> Batch number: 090720003A Sample number(s) : 5616390-5616393 UNSPK: 5616390 <br /> TPH-DRO water C10-C25 w/Si Gel 69 74 59-128 7 20 <br /> Batch number: G090691AA Sample number(s) : 5616386-5616393 UNSPK: 5616390 <br /> Benzene 107 107 87-126 0 30 <br /> Toluene 109 110 83-127 1 30 <br /> Ethylbenzene 116 115 86-128 1 30 <br /> Xylene (Total) 117 116 84-125 0 30 <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: TPH-DRO water C10-C25 <br /> Batch number: 090680002A <br /> Orthoterphenyl <br /> 5616387 99 <br /> 5616388 102 <br /> 5616389 103 <br /> 5616390 100 <br /> 5616391 110 <br /> 5616392 112 <br /> 5616393 107 <br /> Blank 102 <br /> LCS 119* <br /> MS 110 <br /> MSD 112 <br /> Limits: 45-114 <br /> Analysis Name: PAHs in Water by LVI GC/MS <br /> Batch number: 09068WAA026 <br /> *-Outside of specification <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 />