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sift McCampbell Analytical, Inc. <br />"When Quality Counts" <br />1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />1 oil 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 />Extraction Method: SW5030B <br />Instrument: GC45 <br />Analytical Method: SW8260B <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 />%REC <br />LCSD <br />%REC <br />LCS/LCSD <br />Limits <br />RPD RPD <br />Limit <br />Acetone 0.238 0.210 0.20 119 105 60-140 12.7 20 <br />tert-Amyl methyl ether (TAME) 0.0158 0.0151 0.020 79 75 50-140 4.62 20 <br />Benzene 0.0172 0.0162 0.020 86 81 60-140 6.36 20 <br />Bromobenzene 0.0191 0.0180 0.020 96 90 60-140 6.32 20 <br />Bromochloromethane 0.0175 0.0164 0.020 88 82 60-140 6.60 20 <br />Bromodichloromethane 0.0160 0.0150 0.020 80 75 60-140 6.38 20 <br />Bromoform 0.0123 0.0111 0.020 62 56 40-140 9.99 20 <br />Bromomethane 0.0145 0.0145 0.020 72 73 30-140 0.491 20 <br />2-Butanone (MEK) 0.0838 0.0788 0.080 105 99 50-140 6.03 20 <br />t-Butyl alcohol (TBA) 0.0714 0.0646 0.080 89 81 50-140 9.94 20 <br />n-Butyl benzene 0.0256 0.0234 0.020 128 117 60-150 8.78 20 <br />sec-Butyl benzene 0.0244 0.0225 0.020 122 113 60-150 8.21 20 <br />tert-Butyl benzene 0.0220 0.0208 0.020 110 104 60-140 5.88 20 <br />Carbon Disulfide 0.0152 0.0143 0.020 76 72 50-140 6.18 20 <br />Carbon Tetrachloride 0.0138 0.0132 0.020 69 66 60-140 4.88 20 <br />Chlorobenzene 0.0186 0.0175 0.020 93 88 60-140 6.23 20 <br />Chloroethane 0.0147 0.0138 0.020 73 69 50-140 6.13 20 <br />Chloroform 0.0164 0.0155 0.020 82 78 60-140 5.53 20 <br />Chloromethane 0.0157 0.0142 0.020 78 71 20-140 10.1 20 <br />2-Chlorotoluene 0.0215 0.0201 0.020 107 100 60-140 6.76 20 <br />4-Chlorotoluene 0.0217 0.0200 0.020 109 100 60-140 8.42 20 <br />Dibromochloromethane 0.0150 0.0142 0.020 75 71 50-140 5.48 20 <br />1,2-Dibromo-3-chloropropane 0.00747 0.00656 0.010 75 66 30-140 12.9 20 <br />1,2-Dibromoethane (EDB) 0.00921 0.00872 0.010 92 87 40-140 5.51 20 <br />Dibromomethane 0.0175 0.0162 0.020 88 81 60-140 7.85 20 <br />1,2-Dichlorobenzene 0.0170 0.0155 0.020 85 78 60-140 8.80 20 <br />1,3-Dichlorobenzene 0.0199 0.0180 0.020 99 90 60-140 9.92 20 <br />1,4-Dichlorobenzene 0.0190 0.0175 0.020 95 87 60-140 8.13 20 <br />Dichlorodifluoromethane 0.00549 0.00514 0.020 27 26 10-140 6.74 20 <br />1,1-Dichloroethane 0.0176 0.0164 0.020 88 82 60-140 7.04 20 <br />1,2-Dichloroethane (1,2-DCA) 0.0158 0.0150 0.020 79 75 60-140 5.32 20 <br />1,1-Dichloroethene 0.0149 0.0141 0.020 75 71 60-140 5.75 20 <br />cis-1,2-Dichloroethene 0.0178 0.0167 0.020 89 84 60-140 6.24 20 <br />trans-1,2-Dichloroethene 0.0180 0.0172 0.020 90 86 60-140 4.33 20 <br />1,2-Dichloropropane 0.0175 0.0166 0.020 87 83 60-140 5.44 20 <br />1,3-Dichloropropane 0.0198 0.0188 0.020 99 94 60-140 5.10 20 <br />2,2-Dichloropropane 0.0173 0.0171 0.020 87 86 60-140 1.17 20 <br />1,1-Dichloropropene 0.0177 0.0169 0.020 89 84 60-140 4.95 20 <br />(Cont.) <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 36 of 51