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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: 1079256 <br /> Reported: 03/12/08 at 11:57 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 %RBC %REC Limits RPD MAX Conc Conc RPD Max <br /> Chrysene 99 85 53-138 15 30 <br /> Benzo(b)fluoranthene 98 84 42-145 16 30 <br /> Benzo(k)fluoranthene 98 85 40-156 14 30 <br /> Benzo(a)pyrene 100 85 52-131 17 30 <br /> Indeno(1,2,3-cd)pyrene 96 82 43-135 16 30 <br /> Dibenz(a,h)anthracene 97 83 31-135 16 30 <br /> Benzo(g,h,i)perylene 95 81 33-141 17 30 <br /> Batch number: A080631AA Sample number(s) : 5289733-5289740 UNSPK: 5289733 <br /> Benzene 113* 66-112 <br /> Toluene 113 58-116 <br /> Ethylbenzene 110 54-116 <br /> Xylene (Total) 107 52-117 <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: Custom TPH with Ranges (soil) <br /> Batch number: 080640010A <br /> Chlorobenzene Orthoterphenyl <br /> 5289733 100 93 <br /> 5289734 91 92 <br /> 5289735 102 95 <br /> 5289736 102 91 <br /> 5289737 93 94 <br /> 5289738 103 87 <br /> 5289739 90 90 <br /> 5289740 107 90 <br /> Blank 93 95 <br /> LCS 100 99 <br /> LCSD 134* 97 <br /> Limits: 37-125 47-145 <br /> Analysis Name: Selected SVOA's in soil by SIM <br /> Batch number: 08065SLA026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5289733 111 95 88 <br /> 5289734 98 84 78 <br /> 5289735 116 100 94 <br /> 5289736 92 101 106 <br /> 5289737 74 97 102 <br /> 5289738 92 95 102 <br /> 5289739 94 96 101 <br /> 5289740 92 95 99 <br /> Blank 97 98 100 <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 />