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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: 1063247 <br /> Reported: 11/09/07 at 02:43 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 101 102 38-139 1 30 <br /> Benzo(k)fluoranthene 94 95 38-143 2 30 <br /> Benzo(a)pyrene 82 80 31-131 3 30 <br /> Indeno(1,2,3-cd)pyrene 75 74 22-142 1 30 <br /> Dibenz(a,h)anthracene 77 77 14-135 1 30 <br /> Benzo(g,h,i)perylene 63 61 12-144 4 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: 073030019A <br /> Orthoterphenyl <br /> 5198434 106 <br /> 5198435 111 <br /> 5198436 125* <br /> 5198437 115* <br /> 5198438 112 <br /> Blank 114 <br /> LCS 120* <br /> MS 125* <br /> MSD 115* <br /> Limits: 45-114 <br /> Analysis Name: Selected SVOAs by 8270 SIM <br /> Batch number: 07303WAI026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5198434 118 110 116 <br /> 5198435 123 111 120 <br /> 5198436 115 105 108 <br /> 5198437 118 107 111 <br /> 5198438 119 106 113 <br /> Blank 121 109 115 <br /> LCS 119 106 112 <br /> MS 115 105 108 <br /> MSD 118 107 111 <br /> Limits: 50-153 52-132 58-141 <br /> Analysis Name: TPH-DRO (Water) w/Si Gel <br /> Batch number: 073100026A <br /> Orthoterphenyl <br /> 5198438 101 <br /> Blank 100 <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 />