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Project Number: 5F&175-0204.72 <br /> consultant Project Number: 16000.250-044 <br /> F Contract Number: N46CWCO244-9-X <br /> Facility Number: 96155 <br /> 'a Work Order Number: 0010620 <br /> Report Issue Date: October 26,1990 <br /> I a <br /> Table 5 <br /> MATRIX SPIKE(MS)AND MATRIX SPIKE DUPLICATE(MSD) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE(RPD)REPORT <br /> Purgeable Aromatics in Soil <br /> MODIFIED EPA METHOD 8020 <br /> t Date of Analysis: 10/23/90 Client ID: SPC <br /> Sample Used: C01057"9 Units: mg/Kg <br /> l Sample Concentratio MS MS, % MSD MSD, % <br /> Analyte Result n Added Result Recovery Result Recovery <br /> g Be�'zene <0.005 2.86 ;-'.20 77 2.19 77 <br /> i>9 Toluene <0.005 2.85 �.2 79 2.27 79 <br /> is <br /> Ethylbenzene <0.005 2.86 2.31 81 2.35 82 <br /> i•� <br /> Xylene(total) <0.015 6.58 6.94 81 7.06 82 <br /> i Acceptability Limits' <br /> Analyte RPD,% Maximum PPD,% %Recovery <br /> Benzene 0 30 _50-112 <br /> Toluene 0 30 50-108 <br /> s Ethylbenzene 1 30 50-113 <br /> Xytene(total) 1 36 50-114 <br /> Not Detected at the indicattJ detection limit <br /> 1 = Acceptability limits are derived from the 99%confidence interval of all samples during the pre- <br /> vious quarter. <br /> t� <br /> GTEL Concord,CA Page 7 of 7 <br /> C010620-DOC :. <br /> s E <br /> E7/Y7 R 0 NM E1 r4L - l <br /> t■ <br />