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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: 1023154 <br /> Reported: 02/08/07 at 10:33 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 /> Benzo(b)fluoranthene 92 92 45-140 0 30 <br /> Benzo(k)fluoranthene 96 96 52-126 0 30 <br /> Benzo(a)pyrene 87 90 1-149 3 30 <br /> Indeno(1,2,3-cd)pyrene 98 100 60-116 2 30 <br /> Dibenz(a,h)anthracene 98 99 52-119 1 30 <br /> Benzo(g,h,i)perylene 96 98 47-118 2 30 <br /> Batch number: 070330006A Sample number(s) : 4967282-4967286 UNSPK: 4967284 <br /> TPH-DRO(C10-C25)Water w/ SiGel 73 80 59-128 8 20 <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 (C10-C25) Water <br /> Batch number: 070270009A <br /> Orthoterphenyl <br /> 4967282 87 <br /> 4967283 92 <br /> 4967284 94 <br /> 4967285 102 <br /> 4967286 104 <br /> Blank 88 <br /> LCS 103 <br /> MS 102 <br /> MSD 104 <br /> Limits: 59-131 <br /> Analysis Name: Selected SVOAs by 8270 SIM <br /> Batch number: 07029WAI026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 4967282 91 88 98 <br /> 4967283 96 93 98 <br /> 4967284 95 91 99 <br /> 4967285 97 93 100 <br /> 4967286 98 94 101 <br /> Blank 96 95 100 <br /> LCS 91 90 93 <br /> MS 97 93 100 <br /> MSD 98 94 101 <br /> Limits: 57-137 60-115 64-123 <br /> Analysis Name: TPH-DRO(C10-C25)Water w/ SiGel <br /> Batch number: 070330006A <br /> Orthoterphenyl <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br />