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CASE NARRATIVE <br /> 1 This Case Narrative applies to the data from the analysis of <br /> BTEX by EPA Method 8020; and Total Petroleum Hydrocarbons <br /> Purgeable (Gasoline) CA LUFT Field Manual for CHEMWEST Ticket <br /> number 9796. <br /> All Blanks contaltsed no analytes at or above the reporting <br /> limit for each analyte. <br /> The linear regression calculation for the initial calibration <br />' met required criteria. <br /> Continuing calibration standards were verified and met <br /> acceptance criteria. <br />' Theercent recoveries and RPD's for all laboratory quality <br /> P y <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 /> CW Sample 9796--1 required dilution due to the presence of a <br /> high boiling hydrocarbon mixture . The sample was BRL at this <br /> dilution for gasoline or any other fuel mixture detected in the <br /> range of gasoline. <br /> :712-1- SU <br /> ' Kirk Pocan D to <br /> GC Laboratory Manager <br /> 1 <br /> COMR)Cl IEM WES1EQN DIVISION <br />