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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: 2406L78 <br /> Date Prepared: 07/10/2024 BatchID: 297376 <br /> Date Analyzed: 07/13/2024 Extraction Method: DOD QSM <br /> Instrument: LC-MS3 Analytical Method: DOD QSM <br /> Matrix: Waste Water Unit: ng/L <br /> Project: E2001601F.004.002; SCK Sample ID: MB/LCS/LCSD-297376 <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 20 18 16 124 114 70-130 8.18 30 <br /> 11CIPF3OUdS 15 15 16 94 92 70-130 1.77 30 <br /> 3:3 FTCA 16 16 16 97 100 70-130 2.98 30 <br /> 4:2 FTS 17 16 16 107 100 63-143 6.30 30 <br /> 5:3 FTCA 15 16 16 93 97 70-130 3.92 30 <br /> 6:2 FTS 16 17 16 103 106 64-140 3.06 30 <br /> 7:3 FTCA 15 15 16 91 95 70-130 3.71 30 <br /> 8:2 FTS 19 18 16 117 110 67-138 5.93 30 <br /> 10:2 FTS 17 14 16 105 85 70-130 20.1 30 <br /> ADONA 16 17 16 100 106 70-130 6.15 30 <br /> EtFOSA 17 15 16 107 91 70-130 15.8 30 <br /> EtFOSE 16 16 16 99 99 70-130 0.171 30 <br /> HFPO-DA 17 17 16 105 109 70-130 3.91 30 <br /> McFOSA 16 13 16 103 84 70-130 20.1 30 <br /> McFOSE 16 16 16 99 98 70-130 0.654 30 <br /> NEtFOSAA 16 16 16 98 100 61-135 2.02 30 <br /> NFDHA 16 16 16 101 101 70-130 0.154 30 <br /> NMeFOSAA 17 17 16 107 103 65-136 3.15 30 <br /> PFBA 16 17 16 103 107 73-129 4.06 30 <br /> PFBS 16 17 16 102 106 72-130 4.37 30 <br /> PFDA 17 17 16 105 109 71-129 3.46 30 <br /> PFDDA 17 15 16 107 96 72-134 11.7 30 <br /> PFDS 15 16 16 92 102 53-142 10.2 30 <br /> PFEESA 16 16 16 98 99 70-130 1.20 30 <br /> PFHpA 16 16 16 98 103 72-130 4.92 30 <br /> PFHpS 17 18 16 106 110 69-134 3.74 30 <br /> PFHxA 17 16 16 105 101 72-129 3.62 30 <br /> PFHxDA 17 16 16 105 98 70-130 7.10 30 <br /> PFHxS 16 17 16 98 103 68-131 4.74 30 <br /> PFMBA 16 15 16 98 96 70-130 2.17 30 <br /> PFMPA 16 15 16 100 94 70-130 6.39 30 <br /> PFNA 16 16 16 103 103 69-130 0.189 30 <br /> PFNS 15 16 16 96 101 69-127 5.51 30 <br /> PFOA 17 16 16 105 98 71-133 6.76 30 <br /> PFODA 14 17 16 88 107 50-130 19.4 30 <br /> PFOS 16 16 16 99 102 65-140 3.13 30 <br /> PFOSA 16 17 16 102 103 65-140 1.48 30 <br /> PFPeA 17 16 16 105 101 72-129 3.34 30 <br /> (Cont.) <br /> DoD-ELAP Cert#L22-757•CA ELAP 1644 <br /> Page 26 of 32 <br />