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LABORATORY NARRATIVE <br /> i Mod.Method TO-14A <br /> Kleinfelder <br /> Workorder#0512241 <br /> One 1 Liter Silonite Canister and one 1 Liter Summa Canister samples were received on December 09, <br /> 2005. The laboratory performed the analysis via Modified Method TO-14A using GUMS in the full scan <br /> mode. The method involves direct injection of up to a 40 mL sample aliquot into a vapor management <br /> system. Following dehumidification the sample passes directly into the GUMS for analysis. <br /> Method modifications taken to run these samples are summarized in the below table. Specific project <br /> requirements may over-ride the ATI,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 M.D U=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 /> 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 /> 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 /> Definition of Data Qualifying 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 /> J- Estimated value. <br /> E- Exceeds instrument calibration range. <br /> S - Saturated peak. <br /> Q - Exceeds quality control limits. <br /> i <br /> U- Compound analyzed for but not detected above the reporting limit <br /> UJ- Non-detected compound associated with low bias in 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 /> as follows: <br /> Page 2 of 10 <br />