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ILABORATORY NARRATIVE <br /> • Mod. Method TO--14A <br /> Condor Earth Technologies <br /> Workorder# 0508302 <br /> Two 6 Liter Summa Canister samples were received on August 12 2005 The laboratory performed the <br /> P � n' <br /> analysis via Modified Method TO-14A using GC/MS in the frill scan mode The method involves direct <br /> infection 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 /> I 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-I4A) 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 /> Tetrachlonde 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 /> There were no receiving discrepancies <br /> Analytical Notes <br /> . There were no analytical discrepancies <br /> I <br /> Page 2 of 9 <br />