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Quality Control Report <br />McCampbell Analytical, Inc.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"When Quality Counts" <br />Client:Condor Earth Technologies, Inc. <br />Project:7459; Sutter Street <br />Date Analyzed:09/27/2022 - 09/28/2022 <br />Date Prepared:09/26/2022 <br />WorkOrder:2209F96 <br />BatchID:254725 <br />Analytical Method:SW8260B <br />Unit:mg/kg <br />Sample ID:MB/LCS/LCSD-254725 <br />Instrument:GC28 <br />Matrix:Soil <br />Extraction Method:SW5030B <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 0.25 0.23 0.080 312,F2 293,F2 60-140 6.39 30 <br />tert-Amyl methyl ether (TAME)0.017 0.016 0.020 84 82 50-140 1.94 30 <br />Benzene 0.021 0.020 0.020 104 101 60-140 2.92 30 <br />Bromobenzene 0.019 0.019 0.020 96 94 60-140 1.36 30 <br />Bromochloromethane 0.019 0.019 0.020 97 95 60-140 2.67 30 <br />Bromodichloromethane 0.019 0.018 0.020 95 92 60-140 2.97 30 <br />Bromoform 0.012 0.012 0.020 62 60 40-140 2.72 30 <br />Bromomethane 0.021 0.020 0.020 104 102 30-140 2.65 30 <br />2-Butanone (MEK)0.075 0.072 0.080 94 90 50-140 3.67 30 <br />t-Butyl alcohol (TBA)0.065 0.070 0.080 81 87 50-140 7.41 30 <br />n-Butyl benzene 0.027 0.025 0.020 134 123 60-150 8.30 30 <br />sec-Butyl benzene 0.026 0.025 0.020 129 124 60-150 3.73 30 <br />tert-Butyl benzene 0.023 0.023 0.020 116 114 60-140 1.81 30 <br />Carbon Disulfide 0.016 0.018 0.020 80 92 50-140 14.7 30 <br />Carbon Tetrachloride 0.019 0.018 0.020 95 92 60-140 2.39 30 <br />Chlorobenzene 0.019 0.019 0.020 95 94 60-140 1.76 30 <br />Chloroethane 0.020 0.019 0.020 98 94 50-140 3.63 30 <br />Chloroform 0.021 0.021 0.020 106 103 60-140 2.88 30 <br />Chloromethane 0.015 0.015 0.020 74 74 20-140 0.437 30 <br />2-Chlorotoluene 0.023 0.022 0.020 116 111 60-140 4.62 30 <br />4-Chlorotoluene 0.022 0.022 0.020 113 110 60-140 1.95 30 <br />Dibromochloromethane 0.017 0.017 0.020 86 86 50-140 0.343 30 <br />1,2-Dibromo-3-chloropropane 0.0079 0.0077 0.010 79 77 30-140 3.68 30 <br />1,2-Dibromoethane (EDB)0.0095 0.0095 0.010 95 95 40-140 0.480 30 <br />Dibromomethane 0.019 0.019 0.020 97 93 60-140 4.24 30 <br />1,2-Dichlorobenzene 0.018 0.017 0.020 88 83 60-140 5.00 30 <br />1,3-Dichlorobenzene 0.021 0.019 0.020 103 97 60-140 6.06 30 <br />1,4-Dichlorobenzene 0.020 0.019 0.020 100 95 60-140 5.35 30 <br />Dichlorodifluoromethane 0.0091 0.0081 0.020 46 41 10-140 11.6 30 <br />1,1-Dichloroethane 0.020 0.020 0.020 102 101 60-140 1.82 30 <br />1,2-Dichloroethane (1,2-DCA)0.019 0.019 0.020 97 94 60-140 3.03 30 <br />1,1-Dichloroethene 0.018 0.018 0.020 88 92 60-140 4.48 30 <br />cis-1,2-Dichloroethene 0.019 0.019 0.020 96 93 60-140 2.31 30 <br />trans-1,2-Dichloroethene 0.017 0.017 0.020 85 87 60-140 3.10 30 <br />1,2-Dichloropropane 0.021 0.020 0.020 105 102 60-140 2.67 30 <br />1,3-Dichloropropane 0.019 0.020 0.020 96 102 60-140 5.63 30 <br />2,2-Dichloropropane 0.020 0.019 0.020 98 94 60-140 4.38 30 <br />1,1-Dichloropropene 0.020 0.020 0.020 100 98 60-140 1.53 30 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />(Cont.) <br />Page 32 of 49