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McCampbell Analytical, Inc. <br />"When Quality Counts" <br />1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mccampbell.com / E-mail: main@mccampbell.com <br /> <br />Quality Control Report <br />Client: Yara North America WorkOrder: 2101638 <br />Date Prepared: 01/14/2021 <br />BatchID: 213160 <br />Date Analyzed: 01/14/2021 <br /> <br />Extraction Method: SW5030B <br />Instrument: GC45 <br />Analytical Method: 5W8260B <br />Matrix: Soil <br /> <br />Unit: mg/kg <br />Project: New Site Pond <br /> <br />Sample ID: MB/LCS/LCSD-213160 <br />QC Summary Report for SW8260B <br />Analyte LCS <br />Result <br />LCSD <br />Result <br />SPK <br />Val <br />LCS <br />VoREC <br />LCSD <br />VoREC <br />LCS/LCSD <br />Limits <br />RPD RPD <br />Limit <br />Surrogate Recovery <br />Dibromofluoromethane 0.127 0.124 0.12 102 100 70-140 2.01 20 <br />Toluene-d8 0.142 0.143 0.12 114 115 70-140 0.675 20 <br />4-BFB 0.0136 0.0134 0.012 109 107 70-140 1.42 20 <br />Benzene-d6 0.0965 0.0907 0.10 96 91 70-140 6.11 20 <br />Ethylbenzene-d10 0.109 0.105 0.10 109 105 70-140 3.96 20 <br />1,2-DC B-d4 0.0854 0.0782 0.10 85 78 70-140 8.87 20 <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 38 of 51