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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:10/02/2022 <br />Date Prepared:10/02/2022 <br />WorkOrder:2209F96 <br />BatchID:255263 <br />Analytical Method:SW8260B <br />Unit:µg/L <br />Sample ID:MB/LCS/LCSD-255263 <br />Instrument:GC45 <br />Matrix:Water <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 37 39 40 93 96 60-130 3.23 20 <br />tert-Amyl methyl ether (TAME)3.4 3.6 4 85 90 60-130 4.84 20 <br />Benzene 3.6 3.8 4 90 94 65-130 4.29 20 <br />Bromobenzene 3.6 3.6 4 89 90 60-130 1.56 20 <br />Bromochloromethane 3.8 4.0 4 96 99 65-130 3.06 20 <br />Bromodichloromethane 3.8 3.9 4 94 99 60-130 4.31 20 <br />Bromoform 3.3 3.6 4 83 90 70-130 8.35 20 <br />Bromomethane 3.5 3.8 4 87 95 50-130 8.51 20 <br />2-Butanone (MEK)14 15 16 89 91 60-130 1.90 20 <br />t-Butyl alcohol (TBA)13 14 16 84 87 50-130 3.25 20 <br />n-Butyl benzene 3.9 4.1 4 98 103 60-130 4.56 20 <br />sec-Butyl benzene 3.6 3.9 4 91 97 60-130 6.10 20 <br />tert-Butyl benzene 3.6 3.7 4 89 91 60-130 3.01 20 <br />Carbon Disulfide 3.9 4.1 4 97 102 60-130 4.56 20 <br />Carbon Tetrachloride 3.9 4.0 4 97 101 70-130 4.23 20 <br />Chlorobenzene 3.7 3.8 4 92 95 65-130 3.99 20 <br />Chloroethane 4.0 4.1 4 99 103 60-140 4.24 20 <br />Chloroform 3.8 3.9 4 94 98 70-130 3.79 20 <br />Chloromethane 4.0 4.2 4 101 106 50-130 4.56 20 <br />2-Chlorotoluene 3.4 3.7 4 85 93 60-130 8.64 20 <br />4-Chlorotoluene 3.6 3.7 4 89 93 60-130 4.84 20 <br />Dibromochloromethane 3.8 4.0 4 95 99 70-130 4.85 20 <br />1,2-Dibromo-3-chloropropane 1.8 1.9 2 92 95 50-130 3.00 20 <br />1,2-Dibromoethane (EDB)1.9 1.9 2 93 97 60-130 4.11 20 <br />Dibromomethane 3.6 3.9 4 91 98 60-130 7.82 20 <br />1,2-Dichlorobenzene 3.3 3.5 4 84 88 65-130 5.06 20 <br />1,3-Dichlorobenzene 3.6 3.8 4 91 96 70-130 5.71 20 <br />1,4-Dichlorobenzene 3.6 3.7 4 89 93 65-130 3.88 20 <br />Dichlorodifluoromethane 3.9 4.1 4 98 104 40-140 5.81 20 <br />1,1-Dichloroethane 3.8 3.9 4 94 98 70-130 3.67 20 <br />1,2-Dichloroethane (1,2-DCA)3.7 3.8 4 92 94 70-130 2.76 20 <br />1,1-Dichloroethene 3.6 3.7 4 89 92 60-130 3.93 20 <br />cis-1,2-Dichloroethene 3.7 4.0 4 93 100 60-130 7.35 20 <br />trans-1,2-Dichloroethene 3.8 3.9 4 94 97 70-130 2.67 20 <br />1,2-Dichloropropane 3.8 4.0 4 94 99 60-130 5.30 20 <br />1,3-Dichloropropane 3.7 3.9 4 92 97 60-130 5.55 20 <br />2,2-Dichloropropane 4.1 4.1 4 102 103 60-130 1.83 20 <br />1,1-Dichloropropene 3.8 4.0 4 96 100 60-130 3.57 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />(Cont.) <br />Page 38 of 49