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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: 1036252 <br /> Reported: 05/14/07 at 11:13 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 <br /> RPD <br /> Analysis Name %,REC %REC Limits RPD MAX Conc Conc RPD Max_ <br /> Chrysene 117 120 58-129 4 30 <br /> Benzo(b)fluoranthene 101 102 42-141 2 30 <br /> Benzo(k)fluoranthene 106 109 40-139 4 30 <br /> Benzo(a)pyrene 96 98 1-155 3 30 <br /> Indeno(1,2,3-cd)pyrene 109 112 12-157 3 30 <br /> Dibenz(a,h)anthracene 91 93 17-153 3 30 <br /> Benzo(g,h,i)perylene 100 103 1-168 4 30 <br /> Batch number: 071290035A Sample number(s) : 5043516-5043518 UNSPK: 5043516 <br /> TPH-DRO(C10-C25)Water w/ SiGel 73 75 59-128 2 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: 071230014A <br /> Orthoterphenyl <br /> 5043514 90 <br /> 5043515 94 <br /> 5043516 95 <br /> 5043517 105 <br /> 5043518 108 <br /> Blank 87 <br /> LCS 114 <br /> MS 105 <br /> MSD 108 <br /> Limits: 59-131 <br /> Analysis Name: Selected SVOAs by 8270 SIM <br /> Batch number: 07123WACO26 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5043514 118 121 122 <br /> 5043515 115 120 102 <br /> 5043516 120 121 132 <br /> 5043517 109 108 119 <br /> 5043518 111 111 115 <br /> Blank 106 113 115 <br /> LCS 100 105 106 <br /> MS 109 108 119 <br /> MSD 111 111 115 <br /> Limits: 50-153 52-132 58-141 <br /> Analysis Name: TPH-DRO(C10-C25)Water w/ SiGel <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 />