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1 <br /> CASE NARRATIVE <br />, 1 <br /> This Case Narrative applies to the data from the analysis of <br /> BTEX - EPA Method 8020, and Total Petroleum Hydrocarbons <br /> Purgeable (Gasoline) - CA LUFT Field Manual for CHEMWEST Ticket <br /> number 9805. <br /> All Blanks contained no analytes at or above the reporting <br /> limit for each analyte. <br /> 1 The linear regression calculation for the initial calibration <br /> met required criteria. <br /> Continuing calibration standards were verified and met <br /> acceptance criteria. <br /> The percent recoveries and RPD's for all laboratory quality <br /> control samples were within acceptance criteria. <br /> CALUFT: CHEMWEST follows the California Luft Field Manual <br /> ' guidelines for Total Petroleum Hydrocarbons Purgeable analysis. <br /> Kirk P can Date <br /> GC Laboratory Manager <br /> 1 <br /> i <br /> 1 <br /> COMPUCHEM WESTERN DIVISION <br />