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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: 2312D25 <br /> Date Prepared: 12/27/2023 BatchID: 284839 <br /> Date Analyzed: 01/03/2024 Extraction Method: DOD QSM <br /> Instrument: LC-MS3 Analytical Method: DOD QSM <br /> Matrix: Soil Unit: µg/Kg <br /> Project: E200160117; Stockton Airport PFAS Samples Sample ID: MB/LCS/LCSD-284839 <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 5.8 6.1 5 116 122 70-130 5.24 30 <br /> 11CIPF3OUdS 5.5 5.5 5 109 ill 70-130 1.30 30 <br /> 3:3 FTCA 5.0 5.5 5 101 110 70-130 8.89 30 <br /> 4:2 FTS 5.7 6.8 5 114 136 62-145 17.7 30 <br /> 5:3 FTCA 4.9 6.0 5 97 120 70-130 20.5 30 <br /> 6:2 FTS 5.1 6.6 5 102 132 64-140 25.9 30 <br /> 7:3 FTCA 5.9 5.8 5 118 117 70-130 1.00 30 <br /> 8:2 FTS 5.2 5.5 5 104 110 65-137 5.09 30 <br /> 10:2 FTS 5.0 5.6 5 100 111 70-130 10.4 30 <br /> ADONA 5.1 5.9 5 101 117 70-130 14.6 30 <br /> ETOSA 5.4 5.7 5 108 114 70-130 5.91 30 <br /> ETOSE 5.0 5.4 5 100 109 70-130 8.22 30 <br /> HFPO-DA 5.6 5.9 5 ill 118 70-130 6.25 30 <br /> McFOSA 5.6 5.9 5 112 118 70-130 5.24 30 <br /> McFOSE 6.4 6.4 5 128 128 70-130 0.0811 30 <br /> NETOSAA 5.6 5.5 5 ill ill 61-139 0.531 30 <br /> NFDHA 5.0 4.9 5 99 99 70-130 0.842 30 <br /> NMeFOSAA 5.7 5.5 5 115 109 63-144 4.97 30 <br /> PFBA 5.3 5.8 5 106 117 71-135 9.32 30 <br /> PFBS 5.5 5.9 5 110 117 72-128 6.26 30 <br /> PFDA 5.4 5.8 5 109 116 69-133 6.14 30 <br /> PFDoA 5.4 5.6 5 109 112 69-135 2.88 30 <br /> PFDS 5.4 5.9 5 109 119 59-134 8.87 30 <br /> PFEESA 4.4 5.1 5 88 101 70-130 13.8 30 <br /> PFHpA 4.8 5.6 5 95 ill 71-131 15.1 30 <br /> PFHpS 5.3 5.7 5 106 115 70-132 8.43 30 <br /> PFHxA 5.4 5.7 5 108 114 70-132 4.80 30 <br /> PFHxDA 5.1 5.7 5 102 114 70-130 10.4 30 <br /> PFHxS 5.3 5.5 5 105 110 67-130 4.80 30 <br /> PFMBA 5.0 5.4 5 100 107 70-130 6.93 30 <br /> PFMPA 5.1 5.2 5 102 104 70-130 1.71 30 <br /> PFNA 5.4 5.7 5 108 114 72-129 4.89 30 <br /> PFNS 5.3 5.5 5 105 109 69-125 3.46 30 <br /> PFOA 4.7 5.5 5 94 110 69-133 15.9 30 <br /> PFODA 5.4 5.7 5 108 114 70-130 5.75 30 <br /> PFOS 5.5 5.8 5 110 115 68-136 5.04 30 <br /> PFOSA 5.4 5.8 5 108 115 67-137 6.51 30 <br /> PFPeA 5.4 5.7 5 108 115 69-132 5.91 30 <br /> (Cont.) <br /> DoD-ELAP Cert#L22-757•CA ELAP 1644 <br /> Page 16 of 22 <br />