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' LABORATORY NARRATIVE <br /> . Mod. Method TO-14A <br />' Condor Earth Technologies <br /> Workorder#0512298 <br /> Two 6 Liter Summa Canister s er samples were received on December 13, 2005 The laboratory performed the <br />' analysis via Modified Method TO-14A using GUMS in the full scan mode The method Involves direct <br /> Infection of up to a 40 mL sample aliquot Into a vapor management system Following dehurrudificatton the <br /> sample passes directly Into the GC/MS for analysis <br /> IMethod modifications taken to run these samples are summarized in the below table Specific project <br /> requirements may over-ride the ATL modifications <br /> Requirement TO-14A ATL Modifications <br /> Initial Calibration -+--30%RSD </=30%RSD with 2 compounds allowed out to<40% <br /> Daily CCV +-30%D </=30%D with 2 allowed out up to 40%,flag and narrate <br /> associated sample results <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 /> Blanc acceptance criteria <0 2 ppbv <RL <br /> Sampling Drying System Nafion Dryer Multisorbent concentrator <br /> lieSample 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 /> Receiving Notes <br /> There were no receiving discrepancies <br /> Analytical Notes <br /> There were no analytical discrepancies <br /> Definition of Data Qualify-ing Qualify-inFla2s <br /> Eight qualifiers may have been used on the data analysis sheets and Indicates as follows <br /> B - Compound present in laboratory blank greater than reporting lmut (background subtraction no <br /> performed) <br /> J - Estimated value <br /> E - Exceeds instrument calibration range <br /> S - Saturated peak <br /> Q - Exceeds quality control limits <br /> U- Compound analyzed for but not detected above the reporting limit. <br /> UJ- Non-detected compound associated with low bias m the CCV <br /> N - The identification is based on presumptive evidence <br /> File extensions may have been used on the data analysis sheets and indicates <br /> f as follows <br /> a-Fele was requantified <br /> Page 2 of 9 <br />