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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: 1050497 <br /> Reported: 08/24/07 at 02:18 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 /> Benzo(b)fluoranthene 95 97 38-139 2 30 <br /> Benzo(k)fluoranthene 94 97 38-143 3 30 <br /> Benzo(a)pyrene 87 88 31-131 2 30 <br /> Indeno(1,2,3-cd)pyrene 97 100 22-142 2 30 <br /> Dibenz(a,h)anthracene 90 91 14-135 2 30 <br /> Benzo(g,h,i)perylene 93 95 12-144 3 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 (C10-C25) Water <br /> Batch number: 072210010A <br /> Orthoterphenyl <br /> 5123037 92 <br /> 5123038 92 <br /> 5123039 87 <br /> 5123040 107 <br /> 5123041 93 <br /> 5123042 90 <br /> Blank 93 <br /> LCS 110 <br /> MS 107 <br /> MSD 93 <br /> Limits: 59-131 <br /> Analysis Name: Selected SVOAs by 8270 SIM <br /> Batch number: 07221WABO26 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5123037 117 100 110 <br /> 5123038 116 97 108 <br /> 5123039 127 106 116 <br /> 5123040 117 100 110 <br /> 5123041 122 104 112 <br /> 5123042 124 105 113 <br /> Blank 121 98 102 <br /> LCS 114 91 98 <br /> MS 117 100 110 <br /> MSD 122 104 112 <br /> Limits: 50-153 52-132 58-141 <br /> Analysis Name: TPH-DRO(C10-C25)Water w/ SiGel <br /> Batch number: 072290010A <br /> Orthoterphenyl <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 background result was more than four times the spike added. <br />