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LABORATORY NARRATIVE <br /> Modified TO-14A GC/MS/F1D <br /> Condor Earth Technologies <br /> Workorder#0410170 <br /> Two 6 Liter Summa Canister samples were received on October 08, 2004 The laboratory performed the <br /> analysis via Modified Method TO-14A using GC/MS/F1D The method involves direct mjectuon of a sample <br /> aliquot into a vapor management system The sample passes directly into the GC/MS/FID for analysis <br /> following dehumidification The TPH results are calculated using a response factor derived from Gasolme A <br /> molecular weight of 100 is used to convert the TPH ppbv result to ug/m3 See the data sheets for rcporttng <br /> limits <br /> Requirement 70-14AITO-15 ATL Modifeeattons <br /> Sample Drying System Naflon Dner Multisorbent <br /> Sample Load Volume 400 mL Up to loo mL <br /> Blank Acceptance Cntena <0 2 ppbv <RL <br /> Dilutions for Initial Calibration Dynamic dilutions or Syringe dilutions,fixed volume sampling loop,metered <br /> static using canisters volume <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 /> RT Window Study(FID Only) Mean+/-3 X STD +/-0 08 mm (Mean+/-3 X STD<0 08 min) <br /> within 72 hrs <br /> Receiving Notes <br /> There were no receiving discrepancies <br /> Analytical Notes <br /> There were no analytical discrepancies <br /> Definition of Data Qualifying Flags <br /> Seven qualifiers may have been used on the data analysis sheets and indicates as follows <br /> B - Compound present in laboratory blank greater than reporting lntut (background subtraction no <br /> performed) <br /> J- Estimated value <br /> E- Exceeds instrument calibration range <br /> S - Saturated peak <br /> Q - Exceeds quality control hrmts <br /> U- Compound analyzed for but not detected above the reporting hmiL <br /> UJ- Non-detected compound associated with low bias m the CCV <br /> File extensions may have been used on the data analysis sheets and indicates <br /> as follows <br /> a-File was r+equantified <br /> b-File was quantified by a second column and detector <br /> rl-File was requantrfied for the purpose of reissue <br /> Page 2 of 10 <br />