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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> _ M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: BSK Associates Engineers&Laboratories WorkOrder: 2401944 <br /> Date Prepared: 01/23/2024 BatchID: 286389 <br /> Date Analyzed: 01/25/2024-01/26/2024 Extraction Method: DOD QSM <br /> Instrument: LC-MS3 Analytical Method: DOD QSM <br /> Matrix: Soil Unit: µg/Kg <br /> Project: E200160117; Stockton Airport PFAS Sample ID: MB/LCS/LCSD-286389 <br /> 2401944-020AMS/MSD <br /> QC Summary Report for DOD QSM 5.3 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> 9CIPF30NS 5.5 5.9 5 110 117 70-130 5.87 30 <br /> 11CIPF3OUdS 5.2 6.0 5 105 120 70-130 13.0 30 <br /> 3:3 FTCA 5.6 5.9 5 ill 118 70-130 5.78 30 <br /> 4:2 FTS 5.7 6.7 5 114 134 62-145 16.0 30 <br /> 5:3 FTCA 5.5 5.4 5 ill 107 70-130 3.37 30 <br /> 6:2 FTS 5.6 6.6 5 112 132 64-140 16.4 30 <br /> 7:3 FTCA 5.3 6.3 5 106 125 70-130 17.1 30 <br /> 8:2 FTS 5.6 5.6 5 112 112 65-137 0.252 30 <br /> 10:2 FTS 5.0 5.0 5 100 100 70-130 0.431 30 <br /> ADONA 5.1 5.5 5 102 110 70-130 7.65 30 <br /> ETOSA 5.1 5.8 5 101 116 70-130 13.7 30 <br /> ETOSE 5.5 6.4 5 110 128 70-130 14.8 30 <br /> HFPO-DA 5.5 6.2 5 109 123 70-130 11.9 30 <br /> McFOSA 5.8 6.2 5 117 125 70-130 6.41 30 <br /> McFOSE 5.9 5.7 5 119 114 70-130 3.63 30 <br /> NETOSAA 6.2 6.3 5 123 126 61-139 1.79 30 <br /> NFDHA 5.8 6.0 5 115 120 70-130 3.89 30 <br /> NMeFOSAA 6.4 6.5 5 129 129 63-144 0.371 30 <br /> PFBA 5.6 6.0 5 113 120 71-135 6.17 30 <br /> PFBS 5.5 6.0 5 110 121 72-128 9.34 30 <br /> PFDA 5.7 5.9 5 115 119 69-133 3.24 30 <br /> PFDoA 5.9 6.3 5 117 125 69-135 6.43 30 <br /> PFDS 6.2 6.3 5 124 125 59-134 1.13 30 <br /> PFEESA 5.5 5.6 5 110 113 70-130 2.72 30 <br /> PFHpA 5.0 5.1 5 100 103 71-131 2.33 30 <br /> PFHpS 5.1 6.3 5 101 125 70-132 21.0 30 <br /> PFHxA 6.3 6.1 5 126 121 70-132 4.11 30 <br /> PFHxDA 5.3 5.8 5 106 115 70-130 8.80 30 <br /> PFHxS 5.4 6.4 5 109 127 67-130 15.7 30 <br /> PFMBA 5.1 5.8 5 102 115 70-130 12.2 30 <br /> PFMPA 5.1 5.1 5 101 102 70-130 0.721 30 <br /> PFNA 5.8 5.2 5 117 104 72-129 11.6 30 <br /> PFNS 5.7 6.2 5 114 124 69-125 8.44 30 <br /> PFOA 5.5 5.6 5 110 112 69-133 1.54 30 <br /> PFODA 5.1 5.5 5 103 111 70-130 7.78 30 <br /> PFOS 6.0 6.8 5 121 135 68-136 11.3 30 <br /> PFOSA 5.3 5.4 5 106 107 67-137 0.998 30 <br /> PFPeA 5.3 5.7 5 106 114 69-132 7.93 30 <br /> (Cont.) <br /> DoD-ELAP Cert#L22-757•CA ELAP 1644 <br /> Page 62 of 80 <br />