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Project Number: SFS-1750204.72 <br /> ^ansultant Project Number: 16000.250-044 <br /> Contract Number: N46CWCO244-9-X <br /> T Facility Number: 9-6155 <br /> Work Order Number: C010846 <br /> Report Issue Date: November e,1990 <br /> Table 5 <br /> 1 MATRIX APIKE ND RELAT VIE PERCEIX SPIKE DUPLICATENT DIFFERENCE(RPD) REPORTOVERY <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline in Soil <br /> EPA Method 8020/8015 <br /> „ Date of Analysis; 11/05/90 <br /> Client ID: TC20 <br /> Sample Used: 0010748-10 Units: mg/Kg <br /> r Sample Concentration Ms, % MSD, % <br /> t: ( Analyte Result Added MS Result Recovery MSD Recovery <br /> Result <br /> Benzene ND 2.86 1.75 6i 1.65 58 <br /> Toluene ND ' 2.86 1.82 64 1.71 60 <br /> Ethylbenzene ND 2.86 1.91 67 1.79 63 <br /> X leve(total) 0.03 8.58 5.61 65 5.25 61 <br /> ,5 <br /> 11tt ! Acceptability Limits' <br /> Analyte RPD.% Maximum RPD,% %Recovery <br /> Benzene 5 30 50-112 <br /> 1.: 50-108 <br /> t: <br /> Toluene <br /> 0 30 <br /> Ethylbenzene 6 30 50-113 <br /> ° Xylene(total) 6 30 50-114 <br /> 9 <br /> <# = Not Detected at the indicated detection limit <br /> 1 = Acceptability limits are derived from the 99%confidence interval of all samples durng the <br /> previous qu3rter. <br /> t <br /> ------------------ -----60 <br /> GTEL Concord,CA Page 7 of 7 <br /> COiC846.00C <br /> GTE L <br /> I . <br /> i <br /> - - 'FN VI RON IUEY r is <br /> to Eo RAra219S:,'14 C, _ <br />