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Project Number: SF&175-0204.72 <br /> Can5ullaot Project Number: 16000.250-044 <br /> Contract Number: N46CWCO244-9-X <br /> i u Facility Number: Not Given <br /> Work Order Number: CDW790 <br /> Report issue pate: September 5.1990 <br /> r� <br /> �l <br /> Table 5 <br /> MATRIX SPIKE(MS)AND MATRIX SPIKE Dt1PUCATE(MSD) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE(APO)REPORT <br /> I Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasolin®in Soil <br /> EPA Method 6020/8015 <br /> ;f Date of 90 Analysis. 08 30 <br /> Y / / Client iD: SG 38-8 <br /> I <br /> Sample Used: 0008641-18 Units: mg/Kg <br /> Sample Concentrat€on MS, % MecSD, % <br /> Analyte ?result Added MS Result Recovery MSD Rovery <br /> 1_. Result <br /> ,j Benzene <0.005 2.86 2.58 90 2.43 85 <br /> Toluene <0.005 2.86 2.61 91 2.45 86 <br /> I ( Ethylbenzeno <0.005 2.88 2.65 93 2.49 87 <br /> X lens total} <0.015 8.58 7.96 93 7.49 87 <br /> qq � <br /> Acceptabd <br /> Analyte RPD,°� hlax€mum RPD,% %Re <br /> {„ Benzene 6 30 50Toluene 6 30 50-108 <br /> Ethylbenzene 7 30 50-113 <br /> X ene(total) 7 <br /> 30 50 <br /> <# = Not Detected at the€ndicated detection limit <br /> 1 = Acceptability limits are derived from the 99%confidence intei'ral of all samples during the previous <br /> t quarter. <br /> a:y <br /> i <br /> - I <br /> t.✓ G T FL Concord,CA Page 7 of 7 <br /> E CC4a790.D0C 9 <br /> TFL <br /> _ <br /> en VIA O N N E N TA L <br /> LABORArORIES. INC - <br />