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HMO <br /> Project Number: SF8-175.0204.72 <br /> Consultant Project Number: 16000.250-044 <br /> Contract Number; N46CWCO241-9-X <br /> r Facility Number: 9-6155 <br /> Work Order Humber: C010176 <br /> r Report Issue Date. October 10,1944 <br /> f i <br /> Table 5 <br /> MATRIX SPIKE(MS)AND MATRIX SPIKE DUPLICATE(MSC) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE(RPD)REPORT <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Sail <br /> EPA Method 8020/8015 <br /> Date of Analysis: 10/05/90 Client ID: 1-A,B,C <br /> Sample Used: C010176-01 Units: mg/Kg <br /> Sample Concentration MS, % MSD, 0% <br /> Analyte Result Added MS Result Recovery MSD Recovery <br /> Result <br /> f Benzene ND 2.86 2.23 78 2.22 78 <br /> )` Toluene ND 2.86 2.35 82 2.35 82 <br /> Ethylbenzene ND 2.86 2.45 1 86 2.52 68 <br /> Imo. X ene(total) ND 8.58 7.55 88 7.55 88 <br /> 1 <br /> v Acceptability Limits' <br /> Analyte RPD,% Maximum RPD, b %Recovery <br /> Benzene 0 30 50-112 <br /> = Toluene 0 30 50-108 <br /> Ethylbenzene 2 30 50-113 <br /> Xylene(total) 0 30 50-114 <br /> <# = Not Detected at the indicated detection limit <br /> j 1 = Acceptability limits are derived from the 99%confidence interval of all samplE: �:!JVng the <br /> previous quarter. <br /> —_ ..._.—------ <br /> GTEL Concord,CA Page 7 of 7 <br /> y� C010176.00C <br /> i <br /> GTE <br /> ' - EN41 PONFt E 11 tAt <br /> . - L b80RA;0R1i5.INC. _ <br /> I : <br /> j <br /> .t <br />