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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 3 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1084562 <br /> Reported: 04/17/08 at 10:28 PM <br /> Surrogate Quality Control <br /> Blank 103 80 <br /> DUP 99 74 <br /> LCS 108 92 <br /> MS 106 89 <br /> Limits: 37-125 47-145 <br /> Analysis Name: PAHs in soils by SIM <br /> Batch number: 08102SLB026 <br /> Nitrobenzene-d5 2-Fluorobiphenyl Terphenyl-d14 <br /> 5321499 96 94 107 <br /> 5321500 100 98 105 <br /> 5321501 92 89 97 <br /> 5321502 99 92 103 <br /> 5321503 94 90 96 <br /> 5321504 86 78 86 <br /> 5321505 94 89 99 <br /> 5321506 95 88 95 <br /> 5321507 99 92 101 <br /> 5321508 100 95 101 <br /> 5321509 92 88 96 <br /> Blank 90 93 102 <br /> LCS 95 98 112 <br /> MS 93 92 99 <br /> MSD 90 87 92 <br /> Limits: 53-152 63-129 66-142 <br /> Analysis Name: BTEX+MTBE by 8260B <br /> Batch number: A081021AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 5321499 97 98 91 79 <br /> 5321500 97 94 92 78 <br /> 5321501 98 100 90 80 <br /> 5321502 98 100 90 81 <br /> 5321503 96 92 92 78 <br /> 5321504 96 92 91 79 <br /> Blank 96 97 91 80 <br /> LCS 93 94 96 88 <br /> LCSD 93 92 94 88 <br /> MS 92 94 94 91 <br /> Limits: 71-114 70-109 70-123 70-111 <br /> Analysis Name: BTEX+MTBE by 8260B <br /> Batch number: A081031AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 5321505 94 93 90 80 <br /> 5321506 93 92 91 82 <br /> 5321507 94 91 90 82 <br /> 5321508 94 94 90 81 <br /> 5321509 95 95 90 81 <br /> Blank 92 93 91 81 <br /> LCS 92 92 92 87 <br /> LCSD 92 92 93 88 <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 />