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Quality Control Results <br /> ' Client: Earth Tech, Inc. Job Number: 720-14778-1 <br /> ' Method Blank-Batch: 720-37004 Method: 8260B <br /> Preparation: 5030B <br /> Lab Sample ID: MB 720-37004/3 Analysis Batch: 720-37004 Instrument ID: Varian 390OF <br /> Client Matrix: Water Prep Batch: N/A Lab File ID: c:\saturnws\data\200806\OE <br /> Dilution: 1.0 Units: ug/L Initial Weight/Volume: 40 mL <br /> ' Date Analyzed: 06/19/2008 1125 Final Weight/Volume: 40 mL <br /> Date Prepared: 06/19/2008 1125 <br /> ' Analyte _ - Result Qual RL <br /> Isopropylbenzene ND 0.50 <br /> 4-Isopropyltoluene ND 1.0 <br /> Methylene Chloride ND 5.0 <br /> 4-Methyl-2-pentanone(MIBK) ND 50 <br /> Naphthalene ND 1.0 <br /> N-Propylbenzene ND 1.0 <br /> ' Styrene ND 0.50 <br /> 1,1,1,2-Tetrachloroethane ND 0.50 <br /> 1,1,2,2-Tetrachloroethane ND 0.50 <br /> ' Tetrachloroethene ND 0.50 <br /> Toluene ND 0.50 <br /> 1,2,3-Trichlorobenzene ND 1.0 <br /> 1,2,4-Trichlorobenzene ND 1.0 <br /> 1,1,1-Trichloroethane ND 0.50 <br /> 1,1,2-Trichloroethane ND 0.50 <br /> Trichloroethene ND 0.50 <br /> Trichlorofluoromethane ND 1.0 <br /> ' 1,2,3-Trichloropropane ND 0.50 <br /> 1,1,2-Trichloro-1,2,2-trifluoroethane ND 0.50 <br /> 1,2,4-Trimethylbenzene ND 0.50 <br /> 1,3,5-Trimethylbenzene ND 0.50 <br /> ' Vinyl acetate ND 50 <br /> Vinyl chloride ND 0.50 <br /> Xylenes, Total ND 1.0 <br /> 2,2-Dichloropropane ND 0.50 <br /> ' Surrogate %Rec Acceptance Limits <br /> 4-Bromofluorobenzene 99 74- 131 <br /> ' 1,2-Dichloroethane-d4(Surr) 105 88-119 <br /> Toluene-d8(Surr) 100 82-120 <br /> r <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br /> TestAmerica San Francisco Page 33 of 51 <br />