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<br /> Pt*n Numtwr. SMITS 244.72
<br /> Concuftkld Protect Number: 203i29175,' 1
<br /> Contrscl Number: N46CWCO2444X
<br /> FAO t Number: 9-0557
<br /> Wort Ardor Number. DOD4128
<br /> Report keuo dote: April 10,198;}
<br /> Table 5
<br /> MATRIX SPIKE_(MS)AND MATRIX SPIKE DUPLICATE(MSD)
<br /> RECOVERY AND RELATIVE PERCENT DEVIATION(RPO)
<br /> REPORT
<br /> PurgeaNe Hydrocarbons In Sol
<br /> EPA Method 8240
<br /> Date of Analysis: 04/06/90 Client ID: WO-1
<br /> Sample Spiked: DD04128-01 units: ug/Kg
<br /> Sampi9 Result Amount Added
<br /> Analyte MS Resul, MSD Resua
<br /> 1,1-DicNoroethene ND 25M 2550 2800
<br /> Trichloroethene ND 2500 2300 2450
<br /> Benzene !ID 2500 2350 2550
<br /> Toluene ND 2500 2400 2500
<br /> Chlorobenzene ND 2500 240D 2450
<br /> Accept UfttJmftsl
<br /> MS,% MSD,% Maximum
<br /> Analyte Recovery Recovery RPD,% RPD,% %Recovery
<br /> 1,1-DicNoros.hene 107 112 9 22 59-172
<br /> Trichloroethene 92 98 6 24 62-137
<br /> Benzene 94 11,`- 8 21 66-142
<br /> Toluene _ 93 100 4 21 59.139
<br /> Chlorobenziane 96 98 2 21 60-133
<br /> ND = N;;.Detected above the statistical detection limit.
<br /> 1 = Acceptability limits are derived from USEPA Contract Laboratory Program(CLP)requirements.
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<br /> GTEL Concord,CA Page 12 o1 12 NGTEL D004128.DOC
<br /> I NVIRO N M E uVAL
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