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e u rof Ins <br /> Air Torics <br /> ® LABORATORY NARRATIVE <br /> EPA Method TO-15 <br /> SCS Field Services <br /> Workorder# 1208121 <br /> Seven 1 Liter Summa Canister samples were received on August 07, 2012. The laboratory performed <br /> analysis via EPA Method TO-15 using GUMS 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 /> Receiving Notes <br /> There was a significant difference (greater than 5.0" Hg)between the measured canister receipt vacuum <br /> and that which was reported on the Chain of Custody (COC)or the canister tag for sample EW-7I. A leak <br /> test indicated that the valve was functioning properly. <br /> Analytical Notes <br /> Dilution was performed on samples EW-61),EW-1D, and EW-213 due to the presence of high level target <br /> species. <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 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 37 <br />