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F=+ <br /> Wv <br /> f � <br /> Project Number: SF&175-02o4.72 <br /> Consultant Prnoject Number, 160oP250-044 <br /> Cavact Number N46CWCO244-9.X <br /> Facility Number. Not Givers <br /> Work Order Number. C008790 <br /> Report Issue Dale: September 5,1890 <br /> Table 5 <br /> MATRIX SPIKE(MS)AND MATRIX SPIKE DUPLICATE(MSD) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE(RPD)REPORT <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> a=Gasoline to Sol <br /> tPA Method 8020/8015 <br /> Date of Analysis: 08/30/90 Client ID: SC 38.8 <br /> Sample Used: C008S41-18 Units: mg/Kg <br /> Sample Concentration MS, 96 MSD, % <br /> Analyte Result AddedMS Result Recovery MSD Recovery <br /> Result <br /> - Benzene <0.005 2.86 258 90 2.43 85 <br /> Toluene <0.005 2.86 2.61 91 2.45 86 <br /> 7 Ethylbenzene <0.1005 2.86 2.65 93 2.49 87 <br /> X ene(total) en n f r 8.58 7.96 93 7.49 87 <br /> ¢• Acceptability Limits, <br /> Analyte RPD,96 Maximum RPD,% %Recovery <br /> Benzene 6 30 50-112 <br /> Toluene 6 30 50-108 <br /> Ethylbenzene 7 30 50-113 <br /> Xylene(total) 7 30 50-114 <br /> w <# = Not Detected at the indicated detection limit <br /> 1 - Acceptability limits are derived from the 99%confidence interval of all samples during the previous <br /> quarter. <br /> t <br /> GT=L Concord.CA Page 7 of 7 <br /> C008790.0OC <br /> GTEL <br /> - ENvry o N MEN ea: _ <br /> 1� LA�OII AT°flf(5. INC - - <br />