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ti% eurofins <br /> Air Toxics <br /> LABORATORY NARRATIVE <br /> EPA Method TO-15 <br /> Ground Zero Analysis, Inc. <br /> Workorder# 2407175A <br /> Two 1 Liter Summa Canister samples were received on July 03, 2024. The laboratory performed analysis <br /> via EPA Method TO-15 using GUMS in the full scan mode. <br /> Receiving Notes <br /> There were no receiving discrepancies. <br /> Analytical Notes <br /> There were no analytical discrepancies. <br /> Definition of Data Oualifying Flags <br /> Ten 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, LOD, or MDL value. See <br /> data page for project specific U-flag definition. <br /> UJ-Non-detected compound associated with low bias in the CCV <br /> N- The identification is based on presumptive evidence. <br /> M - Reported value may be biased due to apparent matrix interferences. <br /> CN - See Case Narrative. <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 18 <br />