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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C am p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" I <br /> http://www.mccanTbell.com/E-mail:main@mccampbell.com <br /> Analytical Report <br /> Client: BSK Associates Engineers&Laboratories WorkOrder: 2401944 <br /> Date Received: 01/16/2024 15:10 Extraction Method: DOD QSM <br /> Date Prepared: 01/23/2024 Analytical Method: DOD QSM <br /> Project: E2001601F; Stockton Airport PFAS Unit: µg/Kg <br /> Perfluorinated Compounds <br /> Client ID Lab ID Matrix Date Collected instrument Batch ID <br /> B-22@1' 2401944-001A Soil 01/15/2024 09:45 LC-MS3 01242024 DOD S_ 286389 <br /> Analytes Result MDL RL DF Date Analyzed <br /> PFOSA ND 0.21 1.0 1 01/25/2024 06:15 <br /> PFPeA ND 0.26 1.0 1 01/25/2024 06:15 <br /> PFPeS ND 0.17 1.0 1 01/25/2024 06:15 <br /> PFTeDA ND 0.19 1.0 1 01/25/2024 06:15 <br /> PFTrDA ND 0.29 1.0 1 01/25/2024 06:15 <br /> PFUnA ND 0.34 1.0 1 01/25/2024 06:15 <br /> Internal Standard REC % Limits <br /> 13C2-4:2 FTS 88 50-150 1 01/25/2024 06:15 <br /> 13C2-6:2 FTS 96 50-150 1 01/25/2024 06:15 <br /> 13C2-8:2 FTS 77 50-150 1 01/25/2024 06:15 <br /> 13C2-PFDoA 81 50-150 1 01/25/2024 06:15 <br /> 13C2-PFTeDA 92 50-150 1 01/25/2024 06:15 <br /> 13C3-HFPO-DA 89 50-150 1 01/25/2024 06:15 <br /> 13C3-PFBS 97 50-150 1 01/25/2024 06:15 <br /> 13C3-PFHxS 94 50-150 1 01/25/2024 06:15 <br /> 13C4-PFBA 88 50-150 1 01/25/2024 06:15 <br /> 13C4-PFHpA 86 50-150 1 01/25/2024 06:15 <br /> 13C5-PFHxA 100 50-150 1 01/25/2024 06:15 <br /> 13C5-PFPeA 87 50-150 1 01/25/2024 06:15 <br /> 13C6-PFDA 93 50-150 1 01/25/2024 06:15 <br /> 13C7-PFUdA 91 50-150 1 01/25/2024 06:15 <br /> 13C8-PFDA 94 50-150 1 01/25/2024 06:15 <br /> 13C8-PFOS 93 50-150 1 01/25/2024 06:15 <br /> 13C8-PFOSA 89 50-150 1 01/25/2024 06:15 <br /> 13C9-PFNA 102 50-150 1 01/25/2024 06:15 <br /> d3-McFOSAA 101 50-150 1 01/25/2024 06:15 <br /> d5-EtFOSAA 98 50-150 1 01/25/2024 06:15 <br /> 13C2-PFHxDA 68 50-150 1 01/25/2024 06:15 <br /> d3-McFOSA 92 50-150 1 01/25/2024 06:15 <br /> d5-EtFOSA 85 50-150 1 01/25/2024 06:15 <br /> d7N-McFOSE 84 50-150 1 01/25/2024 06:15 <br /> d9N-EtFOSE 90 50-150 1 01/25/2024 06:15 <br /> Analyst(s): STA <br /> (Cont.) <br /> DoD-ELAP Cert#L22-757•CA ELAP 1644 <br /> Page 7 of 80 <br />