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p x. <br /> ys� <br /> i <br /> Project Number: SFS-173-0204.72 <br /> w Cwniuttant Project Number: 16000.250-0" <br /> Contract Number: N46CWCO244-9-X _ <br /> Facility Number: MISS <br /> Work Order Number: CD098387 <br /> Report Issue Date: September 20,1990 <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 /> _ as Gasoline In Soli <br /> EP=A Method 8020/8015 <br /> Date of Analysis: 09/17/90 <br /> Samp'e Used: C009371.01 Units: mg/Kg <br /> Sample Concentration MS, % MSD MSD, % <br /> Analyte Result Added MS Result Recovery Result recovery <br /> 9enzene ND 2.86 2.27 79 2.34 82 <br /> Toluene NO 2.86 2.07 72 2.13 74 <br /> 1 Ethylbenzene ND 2.88 2.11 74 2.97 76 <br /> ;. <br /> Xylene(total) ND 8.58 6.38 74 6.54 75 <br /> Acceptability Limas t <br /> Analyte RPD,% Maximum RPD,% %Recovery <br /> Benzene 4 30 50-112 <br /> Toluene 3 30 50-108 <br /> Ethyfbenzene 3 30 50-113 <br /> Xylene(total) 1 30 50-114 <br /> ¢# Not Detected at the indicated detection limit <br /> 1 = Acceptability limits are derived from the 99%confidence interval of all samples during the <br /> previous quarter. <br /> - GTEL Concord,CA Page 7 of 7 <br /> COG387.00G <br /> GTE <br /> - IMvtaowNE�rwt .. <br />