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vAir 0 <br /> Laboratory Services Since 1989 <br /> LABORATORY NARRATIVE <br /> EPA Method TO-15 <br /> Lee and Pierce Inc. <br /> Workorder## 1202280 <br /> Two 1 Liter Summa Canister samples were received on February 13, 2012. The laboratory performed <br /> analysis via EPA Method TO-15 using GC/MS in the full scan mode. <br /> This workorder was independently validated prior to submittal using 'USEPA National Functional <br /> Guidelines' as generally applied to the analysis of volatile organic compounds in air. A rules-based, logic <br /> driven, independent validation engine was employed to assess completeness, evaluate pass/fail of relevant <br /> project quality control requirements and verification of all quantified amounts. <br /> Receivinu Notes <br /> There were no receiving discrepancies. <br /> Analytical Notes <br /> A single point calibration for TPH referenced to Gasoline was performed for each daily analytical batch. <br /> Recovery is reported as 100% in the associated results for each CCV. <br /> All Quality Control Limit exceedances and affected sample results are noted by flags. Each flag is defined <br /> at the bottom of this Case Narrative and on each Sample Result Summary page. <br /> Definition of Data Oualifyina Flaes <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 not <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 in the CCV and/or LCS. <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 /> b-File was quantified by a second column and detector <br /> rl-File was requantified for the purpose of reissue <br /> Page 3 of 10 <br />