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s. <br /> Project Number, SF5-175-0244.72 <br /> Consultant Project Number: 16000-250-044 <br /> Contract Number; N46CWCO244-9-X <br /> Facility Number: 9-6155 <br /> Work Order Number: 0008737 <br /> Report Issue Date: August 31,1990 <br /> l- <br /> a ; <br /> Table 5 <br /> MATRIX SPIKE{MS)AND MATRIX SPIKE DUPLICATE(MSD) RECOVERY <br /> A AND RELATIVE PERCENT DIFFERENCE(RPD)REPORT <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Soil <br /> EPA Method 8020/8015 <br /> Date of Analysis: 08/28/90 Client ID: 6-A,B,C <br /> s ' Sample Used: C008737-02 Units: mg/Kg <br /> e Sample Concentration MS, % MSD, % <br /> Analyte Result Added „ria Result Recovery MSD Recovery <br /> f J Result <br /> S f Benzene <0.005 2.86 1.96 69 2.14 75 <br /> Toluene 0.02 2.86 1.98 69 2.16 76 <br /> Ethyibenzene <0.005 2.86 2.02 71 2.20 77 <br /> X ene total) 0.02 8.58 6.14 72 8.68 78 <br /> �s <br /> Acceptability Limits1 <br /> Analyte RPD,% Maximum RPD,% %Recovery <br /> Benzene 8 30 50-112 <br /> Toluene 10 30 50-108 <br /> #_ EIt ylbenzene 8 30 50-113 <br /> � Xylene(total) 8 30 50-114 <br /> Not Detected at the indicated detection limit <br /> 1 = Acceptability limits are derived from the 9996 confidence interval of ail samples during the previous <br /> quarter. <br /> 1 <br /> GTEL Concord,CA Page 7 of 7 <br /> C008737ZOC <br /> ! TL <br /> ENV I R O4 M EN t A[ - <br /> - <br />