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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:7454; Suter St <br />Date Analyzed:09/25/2022 - 09/27/2022 <br />Date Prepared:09/23/2022 <br />WorkOrder:2209F28 <br />BatchID:254611 <br />Analytical Method:SW8260B <br />Unit:mg/kg <br />Sample ID:MB/LCS/LCSD-254611 <br />Instrument:GC18, GC38 <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 0.26 0.24 0.20 129 122 60-140 5.24 30 <br />tert-Amyl methyl ether (TAME)0.016 0.018 0.020 82 88 50-140 6.84 30 <br />Benzene 0.018 0.019 0.020 90 97 60-140 7.29 30 <br />Bromobenzene 0.017 0.016 0.020 84 81 60-140 2.68 30 <br />Bromochloromethane 0.017 0.018 0.020 83 89 60-140 6.51 30 <br />Bromodichloromethane 0.017 0.018 0.020 85 92 60-140 7.57 30 <br />Bromoform 0.014 0.013 0.020 68 67 40-140 0.738 30 <br />Bromomethane 0.018 0.020 0.020 91 98 30-140 7.11 30 <br />2-Butanone (MEK)0.089 0.081 0.080 111 101 50-140 8.77 30 <br />t-Butyl alcohol (TBA)0.084 0.080 0.080 105 100 50-140 3.98 30 <br />n-Butyl benzene 0.020 0.020 0.020 99 99 60-150 0.854 30 <br />sec-Butyl benzene 0.021 0.021 0.020 104 105 60-150 1.28 30 <br />tert-Butyl benzene 0.020 0.021 0.020 99 103 60-140 4.80 30 <br />Carbon Disulfide 0.018 0.019 0.020 90 96 50-140 7.10 30 <br />Carbon Tetrachloride 0.017 0.019 0.020 87 95 60-140 8.58 30 <br />Chlorobenzene 0.016 0.017 0.020 82 83 60-140 0.644 30 <br />Chloroethane 0.018 0.019 0.020 92 93 50-140 1.96 30 <br />Chloroform 0.018 0.020 0.020 91 98 60-140 7.84 30 <br />Chloromethane 0.017 0.017 0.020 84 87 20-140 3.90 30 <br />2-Chlorotoluene 0.019 0.018 0.020 93 92 60-140 0.813 30 <br />4-Chlorotoluene 0.018 0.018 0.020 92 92 60-140 0.238 30 <br />Dibromochloromethane 0.015 0.015 0.020 77 77 50-140 1.05 30 <br />1,2-Dibromo-3-chloropropane 0.0077 0.0074 0.0080 96 93 30-140 3.25 30 <br />1,2-Dibromoethane (EDB)0.0079 0.0079 0.010 79 79 40-140 0.430 30 <br />Dibromomethane 0.017 0.019 0.020 83 94 60-140 12.2 30 <br />1,2-Dichlorobenzene 0.015 0.014 0.020 74 72 60-140 2.80 30 <br />1,3-Dichlorobenzene 0.018 0.017 0.020 88 85 60-140 3.31 30 <br />1,4-Dichlorobenzene 0.017 0.017 0.020 86 84 60-140 2.79 30 <br />Dichlorodifluoromethane 0.0099 0.010 0.020 50 52 10-140 5.09 30 <br />1,1-Dichloroethane 0.019 0.020 0.020 95 100 60-140 5.63 30 <br />1,2-Dichloroethane (1,2-DCA)0.018 0.019 0.020 91 97 60-140 6.08 30 <br />1,1-Dichloroethene 0.019 0.020 0.020 96 102 60-140 5.92 30 <br />cis-1,2-Dichloroethene 0.018 0.019 0.020 90 94 60-140 4.36 30 <br />trans-1,2-Dichloroethene 0.018 0.019 0.020 91 96 60-140 4.84 30 <br />1,2-Dichloropropane 0.019 0.020 0.020 94 100 60-140 6.36 30 <br />1,3-Dichloropropane 0.017 0.018 0.020 85 88 60-140 3.73 30 <br />2,2-Dichloropropane 0.019 0.020 0.020 94 101 60-140 6.57 30 <br />1,1-Dichloropropene 0.018 0.019 0.020 89 97 60-140 7.86 30 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />(Cont.) <br />Page 31 of 47