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LABORATORY NARRATIVE <br /> Mod. Method TO-14A <br /> { Kleinfelder <br /> Workorder#0509030 <br /> Two 1 Liter Summa Canister samples were received on September 01, 2005.The laboratory performed the <br /> analysis via Modified Method TO-14A using GC/MS in the full scan mode. The method involves direct <br /> injection of up to a 40 mL sample aliquot into a vapor management system. Following dehumidification the <br /> sample passes directly into the GC/MS for analysis. See the data sheets for the reporting limits of each <br /> compound. <br /> Requirement TO-14AITO-15 ATL Modifications <br /> Concentration of Is Spike 10 ppbv(TO-15) 500 ppbv <br /> BFB Acceptance Criteria CLP protocol(TO-15) SW-846 protocol <br /> Sampling Drying System Nafion Dryer(TO-14A) Multisorbent concentrator <br /> Blank acceptance criteria <0.2 ppbv(TO-14A) <RL. <br /> IS Recovery TO-15:Within 40%of Within 40%of CCV recovery for blank and samples. <br /> mean over ICAL for <br /> blanks,and w/in 40% <br /> of daily CCV for <br /> samples <br /> Sample volume Up to 400 mL(TO-14A) Up to 40 mLs <br /> Initial Calibration +-30%RSD(TO-14A) </=30%RSD with 2 compounds allowed out to<40%. <br /> Primary Ions for Quantification Freon 114:85,Carbon Freon 114: 135,Carbon Tetrachloride: 119, <br /> Tetrachloride: 117, Trichloroethene:95,Ethyl Benzene,m,p-and o-Xylene: <br /> Trichloroethene: 130, 106 <br /> Ethyl Benzene,m,p- <br /> and o-Xylene:91 <br /> Daily CCV +-30%D </=30%D with 2 allowed out up to 40%;flag associated <br /> sample results. <br /> Sample collection media Summa canister ATL recommends use of summa canisters to insure data <br /> defensibility,but will report results from Tedlar bags at <br /> client request <br /> BFB Tune Absolute Abundance Within 10%of that CCV Internal Standard area counts are compared to the <br /> Criteria from the previous day. ICAL;corrective action for>40%D. <br /> (TO-14A) <br /> Dilutions for Initial Calibration Dynamic dilutions or Syringe dilutions,bag dilutions. <br /> static using canisters. <br /> Receiving Notes <br /> The Chain of Custody was not relinquished properly. The discrepancy was noted in the Sample Receipt <br /> Confirmation email/fax. <br /> Analytical Notes <br /> There were no analytical discrepancies. <br /> Page 2 of 9 <br />