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i <br /> LABORATORY NARRATIVE <br /> Mod. Method TO-14A <br />' Condor Earth Technologies <br /> Workorder# 0601244 <br /> Two 6 Liter Summa Canister samples were received on Jan "Y13 2006 The laboratory Performed the <br /> I analysts via Modified Method TO-14A using GC/MS in the frill 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 <br /> Method 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%ASD 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 /> Cntena from the previous day ICAL,corrective action for>40%D <br /> Blank acceptance criteria <0 2 ppbv <RL <br /> Sampling Drying System Nafion Dryer Multisorbent concentrator <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 /> 'Receiving Notes <br /> There were no receiving discrepancies <br /> Analytical Notes <br /> There were no analytical discrepancies <br /> Definition of Data Qnahfying Flags <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 limit (background subtraction no <br /> performed) <br /> I 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 in the C CV <br /> N - The identification is based on presumptive evidence <br /> • File extensions may have been used on the data analysis sheets and indicates <br />' as follows <br /> a-File was requantified <br /> Page 2 of 9 <br />