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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:10/01/2022 <br />Date Prepared:10/01/2022 <br />WorkOrder:2209F28 <br />BatchID:255270 <br />Analytical Method:SW8260B <br />Unit:µg/L <br />Sample ID:MB/LCS/LCSD-255270 <br />Instrument:GC18 <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 />cis-1,3-Dichloropropene 3.4 3.3 4 86 82 60-130 3.97 20 <br />trans-1,3-Dichloropropene 3.5 3.3 4 87 82 60-130 5.08 20 <br />Diisopropyl ether (DIPE)3.7 3.6 4 92 90 60-130 1.65 20 <br />Ethylbenzene 3.5 3.4 4 88 86 60-130 2.53 20 <br />Ethyl tert-butyl ether (ETBE)3.7 3.6 4 93 91 60-130 2.76 20 <br />Freon 113 3.7 3.7 4 93 92 60-130 0.595 20 <br />Hexachlorobutadiene 3.4 3.3 4 85 82 60-130 3.28 20 <br />Hexachloroethane 3.2 3.1 4 80 77 50-130 4.78 20 <br />2-Hexanone 3.4 3.4 4 86 86 50-130 0.186 20 <br />Isopropylbenzene 3.3 3.2 4 82 79 60-130 3.48 20 <br />4-Isopropyl toluene 3.5 3.3 4 86 83 60-130 4.20 20 <br />Methyl-t-butyl ether (MTBE)3.9 3.8 4 97 96 60-130 1.40 20 <br />Methylene chloride 3.7 3.7 4 93 93 60-130 0.686 20 <br />4-Methyl-2-pentanone (MIBK)3.3 3.2 4 83 80 50-130 3.72 20 <br />Naphthalene 4.3 4.0 4 108 99 60-130 9.07 20 <br />n-Propyl benzene 3.3 3.3 4 84 82 60-130 1.91 20 <br />Styrene 3.5 3.4 4 87 85 60-130 1.98 20 <br />1,1,1,2-Tetrachloroethane 3.6 3.5 4 90 87 60-130 4.03 20 <br />1,1,2,2-Tetrachloroethane 3.7 3.6 4 93 90 60-130 3.40 20 <br />Tetrachloroethene 3.4 3.3 4 86 83 70-130 2.99 20 <br />Toluene 3.4 3.2 4 84 81 70-130 3.85 20 <br />1,2,3-Trichlorobenzene 4.4 4.1 4 109 102 60-130 6.78 20 <br />1,2,4-Trichlorobenzene 4.1 3.8 4 101 94 60-130 7.33 20 <br />1,1,1-Trichloroethane 3.6 3.5 4 89 88 70-130 1.18 20 <br />1,1,2-Trichloroethane 3.8 3.7 4 96 93 70-130 2.52 20 <br />Trichloroethene 3.8 3.7 4 94 92 65-130 1.80 20 <br />Trichlorofluoromethane 3.6 3.6 4 90 89 60-130 1.25 20 <br />1,2,3-Trichloropropane 1.8 1.7 2 88 85 60-130 4.29 20 <br />1,2,4-Trimethylbenzene 3.3 3.3 4 83 82 60-130 0.575 20 <br />1,3,5-Trimethylbenzene 3.3 3.2 4 82 80 60-130 2.87 20 <br />Vinyl Chloride 1.7 1.7 2 85 84 60-130 1.74 20 <br />m,p-Xylene 6.9 6.7 8 86 84 60-130 2.74 20 <br />o-Xylene 3.6 3.5 4 89 88 60-130 1.91 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />(Cont.) <br />Page 38 of 47