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il mAnalysis Report <br /> Lancaster <br /> Laboratories R FF P P�1 isYn <br /> Page I of 2 <br /> Quality Control Summary <br /> Client Name: ChevronTexaco C/O Cambria Env. Group Number: 877654 <br /> Reported: 12/22/03 at 06:29 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number: 033440002A Sample number(s) : 4179766-4179772 <br /> Total TPH N.D. 4.0 mg/kg 98 94 77-126 4 20 <br /> Batch number: 03345A34A Sample number(s) : 4179766-4179772 <br /> Benzene N.D. 0.005 mg/kg 97 86-113 <br /> Toluene N.D. 0.005 mg/kg 95 88-113 <br /> Ethylbenzene N.D. 0.005 mg/kg 95 89-112 <br /> Total Xylenes N.D. 0.02 mg/kg 95 90-112 <br /> Batch number: 03345A34B Sample number(s) : 4179766-4179772 <br /> TPH - GRO CA LUFT (Soils) N.D. 0.2 mg/kg 85' 62-128 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BRG DUP DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Cone Cone RPD Max <br /> Batch number: 03345A34A Sample number(s) : 4179766-4179772 <br /> Benzene 80 78 67-102 2 30 <br /> Toluene 79 76 72-104 3 30 <br /> Ethylbenzene 81 79 73-105 3 30 <br /> Total Xylenes 81 78 75-105 3 30 <br /> Batch number: 0334SA34B Sample number(s) : 4179766-4179772 <br /> TPH - GRO CA LUFT (Soils) 66 71 39-118 6 30 <br /> Surrogate Quality Control <br /> Analysis Name: Custom TPH with Ranges (soil) <br /> Batch number: 033440002A <br /> Chlorobenzene Orthoterphenyl <br /> 4179766 88 90 <br /> 4179767 88 89 <br /> 4179768 91 91 <br /> 4179769 74 79 <br /> 4179770 89 88 <br /> 4179771 85 86 <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br /> Lancaster Laboratories,Inc. <br /> M E M B E R 2425 New Holland Pike <br /> ® PO Box 1 ' <br /> Lancaster,r.PA PA 77605-2425 <br /> 717-656-23M Fax:717-656-2581 <br />