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WG1823984 QUALITY CONTROL SUMMARY <br />L1465194-05,08 Volatile Organic Compounds (GC/MS) by Method 8260B <br />02/25/22 16:43 (LCS) R3764483-1 <br />SDG: PROJECT: <br />2048504278 <br />DATE/TIME: <br />03/03/2217:32 <br />ACCOUNT: <br />ATC - San Ramon, CA <br />PAGE: <br />24 of 35 L1465194 <br />Laboratory Control Sample (LCS) <br />Analyte <br />Spike Amount <br />mg/kg <br />LCS Result <br />mg/kg <br />LCS Rec. Rec. Limits LCS Qualifier <br />n-Butylbenzene 0.125 0.131 105 68.0-135 <br />sec-Butylbenzene 0.125 0.127 102 74.0-130 <br />tert-Butylbenzene 0.125 0.130 104 75.0-127 <br />Carbon tetrachloride 0.125 0.130 104 66.0-128 <br />Chlorobenzene 0.125 0.123 98.4 76.0-128 <br />Chlorodibromomethane 0.125 0.127 102 74.0-127 <br />Chloroethane 0.125 0.125 100 61.0-134 <br />Chloroform 0.125 0.125 100 72.0-123 <br />Chloromethane 0.125 0.119 95.2 51.0-138 <br />2-Chlorotoluene 0.125 0.135 108 75.0-124 <br />4-Chlorotoluene 0.125 0.131 105 75.0-124 <br />1,2-Dibromo-3-Chloropropane 0.125 0.121 96.8 59.0-130 <br />1,2-Dibromoethane 0.125 0.129 103 74.0-128 <br />Dibromomethane 0.125 0.126 101 75.0-122 <br />1,2-DIchlorobenzene 0.125 0.129 103 76.0-124 <br />1,3-Dichlorobenzene 0.125 0.131 105 76.0-125 <br />1,4-Dichlorobenzene 0.125 0.125 100 77.0-121 <br />Dichlorodifluoromethane 0.125 0.129 103 43.0-156 <br />1,1-Dichloroethane 0.125 0.125 100 70.0-127 <br />1,2-Dichloroethane 0.125 0.121 96.8 65.0-131 <br />1,1-Dichloroethene 0.125 0.134 107 65.0-131 <br />cis-1,2-Dichloroethene 0.125 0.121 96.8 73.0-125 <br />trans-1,2-Dichloroethene 0.125 0.124 99.2 71.0-125 <br />1,2-Dichloropropane 0.125 0.122 97.6 74.0-125 <br />1,1-Dichloropropene 0.125 0.127 102 73.0-125 <br />1,3-Dichloropropane 0.125 0.125 100 80.0-125 <br />cis-1,3-Dichloropropene 0.125 0.132 106 76.0-127 <br />trans-1,3-Dichloropropene 0.125 0.118 94.4 73.0-127 <br />2,2-Dichloropropane 0.125 0.136 109 59.0-135 <br />Di-isopropyl ether 0.125 0.120 96.0 60.0-136 <br />Ethylbenzene 0.125 0.129 103 74.0-126 <br />Hexachloro-1,3-butadiene 0.125 0.123 98.4 57.0-150 <br />Isopropylbenzene 0.125 0.126 101 72.0-127 <br />p-Isopropyltoluene 0.125 0.129 103 72.0-133 <br />2-Butanone (MEK) 0.625 0.698 112 30.0-160 <br />Methylene Chloride 0.125 0.126 101 68.0-123 <br />4-Methyl-2-pentanone (MIBK) 0.625 0.669 107 56.0-143 <br />Methyl tert-butyl ether 0.125 0.125 100 66.0-132 <br />Naphthalene 0.125 0.118 94.4 59.0-130 <br />n-Propylbenzene 0.125 0.130 104 74.0-126