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ON." eurofins 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.lancasterlabs.com <br /> Page 3 of 5 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1293926 <br /> Reported: 04/05/12 at 04:09 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 /> Batch number: 120690018A Sample number(s) : 6571127-6571131 UNSPK: 6571127 <br /> Total TPH 81 72 10-168 12 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: 8260 Ext. Soil Master w/GRO <br /> Batch number: B120751AA <br /> Dibromofluoromethane 1,2-Dichloroethane-0 Toluene-d8 4-Bromofluorobenzene <br /> 6571127 109 101 101 94 <br /> 6571128 109 99 98 86 <br /> 6571129 107 100 101 96 <br /> Blank 109 106 102 99 <br /> LCS 106 105 104 106 <br /> MS 107 102 106 103 <br /> MSD 106 98 107 99 <br /> Limits: 50-141 54-135 52-141 50-131 <br /> Analysis Name: 8260 Ext. Soil Master w/GRO <br /> Batch number: B120752AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 6571130 110 103 99 98 <br /> 6571131 101 96 107 84 <br /> Blank 106 102 103 98 <br /> LCS 105 104 104 106 <br /> LCSD 106 101 103 105 <br /> Limits: 50-141 54-135 52-141 50-131 <br /> Analysis Name: VOCs 25 ml purge 8260 <br /> Batch number: C120721AA <br /> Dibromofluoromethane 1,2-DichloroethaneA4 Toluene-d8 4-Bromofluorobenzene <br /> 6571125 113 112 93 102 <br /> 6571126 115* 115* 94 93 <br /> Blank 109 103 94 94 <br /> LCS 108 103 97 99 <br /> LCSD 108 104 97 98 <br /> Limits: 77-114 74-113 77-110 78-110 <br /> Analysis Name: SIM PAH 8270 (microwave) <br /> Batch number: 12069SLD026 <br /> Nitrobenzene-6 2-Fluorobiphenyl Terphenyl-d14 <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 />