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1 <br /> MUL <br /> i <br /> - Prajact Number: SFB 17""4.72 <br /> a ConauttantProlWNumber: 160pp-216 4q <br /> Contract Numhor; N46_64CWCpzg4-g.X <br /> t WOr,0(d r Number: D004 5 <br /> Faport Issue Data: �j 17,19W <br /> h::a <br /> i_ <br /> Iia <br /> I Table 5 <br /> MAMX SPIKE(MS)AND MATRIX SPIKE DUPLICATE(MSD) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE(RPD)REPORT <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> • as Gasoline in Soil <br /> EPA Method 8020/.8015 <br /> Data of Analysis. 04/11/90 <br /> Sample Used: D00415"3 Client 1D: S-MW10.35.5 <br /> Units: m9/Kg <br /> Anal a Sample Concentratio MS %Yi Resultn Added MS Result Aecove MSD' % <br /> ry MSD Recovery <br /> Benzene <01,005Result <br /> 2.86 2.21 <br /> Toluene 77 2.47 86 <br /> <0.005 2.86 2.49 67 <br /> -, Ethylbenzene <0.005 2.67 g3 <br /> 2.86 2.28 80 2.41 <br /> XYlene(total en.015 8.58 6.9 ~ <br /> 80 7.21 <br /> Y.� 84 <br /> � f 1 <br /> Analyte RPD,% Maximum RPD Acceptabliity UmitsI <br /> , <br /> Benzene 14 %Recovery <br /> tz! Toluene 7 30 50-112 <br /> Ethylbenzene 3U 50-108 <br /> ` 5 30 50-113 <br /> X' ene total 5 <br /> o. 30 50-114 <br /> <# a Not Detected at the Indicated detection limit <br /> 1 = Acceptability limits are derived from the 99%confidence Interval of all samples during the pre- <br /> �: vlous quarter. <br /> GTEL Concord,CA <br /> D004159.00C Pa9t 6 of 6 <br /> I N V OR ON U I N f A l <br /> IAIOYAIOCIIS iNC <br /> M <br />