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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.lancasterIabs.com <br /> Page 3 of 3 <br /> REVISED <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1171330 <br /> Reported: 12/08/09 at 08:46 AM <br /> Surrogate Quality Control <br /> Analysis Name: BTEX+MTBE by 8260B <br /> Batch number: A093231AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 5839243 98 87 87 84 <br /> 5839245 103 97 83 96 <br /> Blank 100 94 86 89 <br /> LCS 97 88 89 97 <br /> LCSD 97 92 88 96 <br /> MS 76 86 90 92 <br /> Limits: 71-114 70-109 70-123 70-111 <br /> Analysis Name: PAHs in soils by SIM <br /> Batch number: 09323SLHO26 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5839242 102 94 96 <br /> 5839243 90 72 88 <br /> 5839244 107 71 88 <br /> 5839245 187* 129 83 <br /> 5839246 90 87 80 <br /> Blank 111 97 102 <br /> LCS 117 91 101 <br /> MS 109 85 85 <br /> MSD 133 101 147* <br /> Limits: 53-152 63-129 51-141 <br /> Analysis Name: Custom TPH with Ranges (soil) <br /> Batch number: 093270018A <br /> Chlorobenzene Orthoterphenyl <br /> 5839242 96 98 <br /> 5839243 90 97 <br /> 5839244 88 91 <br /> 5839245 94 103 <br /> 5839246 95 97 <br /> Blank 95 97 <br /> LCS 92 109 <br /> LCSD 92 108 <br /> Limits: 49-125 59-129 <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 />