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QC Sample Results
<br />Job ID: 310-229849-1Client: WSB & Associates, Inc
<br />Project/Site: Kenzie Terrace
<br />Method: 8260D - Volatile Organic Compounds by GC/MS (Continued)
<br />Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-350904/2-A
<br />Matrix: Solid Prep Type: Total/NA
<br />Analysis Batch: 350927 Prep Batch: 350904
<br />Dibromomethane 0.995 1.071 mg/Kg 108 80 -139
<br />Analyte
<br />LCS LCS
<br />DUnitResultQualifier %Rec
<br />Spike
<br />Added
<br />%Rec
<br />Limits
<br />Dichlorobenzene, 1,2-0.995 0.9305 mg/Kg 94 80 -121
<br />Dichlorobenzene, 1,3-0.995 0.8908 mg/Kg 90 80 -122
<br />Dichlorobenzene, 1,4-0.995 0.9534 mg/Kg 96 80 -121
<br />Dichloroethane, 1,1-0.995 1.034 mg/Kg 104 75 -150
<br />Dichloroethane, 1,2-0.995 1.107 mg/Kg 111 79 -141
<br />Dichloroethylene, 1,1-0.995 0.8979 mg/Kg 90 60 -150
<br />Dichloroethylene, cis-1,2-0.995 1.004 mg/Kg 101 80 -140
<br />Dichloroethylene, trans-1,2 0.995 0.9219 mg/Kg 93 75 -146
<br />Dichloromethane 0.995 0.9683 mg/Kg 97 62 -150
<br />Dichloropropane, 1,2-0.995 1.117 mg/Kg 112 80 -143
<br />Dichloropropane, 1,3-0.995 1.108 mg/Kg 111 80 -129
<br />Dichloropropane, 2,2-0.995 1.039 mg/Kg 104 64 -150
<br />Dichloropropene, 1,1-0.995 1.098 mg/Kg 110 80 -137
<br />Dichloropropene, cis 1,3-0.995 1.123 mg/Kg 113 80 -127
<br />Dichloropropene, trans 1,3-0.995 1.114 mg/Kg 112 80 -129
<br />Ethyl ether 0.995 1.014 mg/Kg 102 75 -146
<br />Ethylbenzene 0.995 1.113 mg/Kg 112 80 -126
<br />Hexachlorobutadiene 0.995 0.8970 mg/Kg 90 51 -150
<br />Isopropylbenzene 0.995 0.9963 mg/Kg 100 80 -128
<br />p-Isopropyltoluene 0.995 0.9340 mg/Kg 94 79 -124
<br />Methyl ethyl ketone (MEK)1.99 1.997 mg/Kg 100 57 -150
<br />4-Methyl-2-pentanone (MIBK)1.99 2.034 mg/Kg 102 72 -137
<br />Methyl tert-butyl ether 0.995 1.011 mg/Kg 102 73 -147
<br />Naphthalene 0.995 0.8862 mg/Kg 89 47 -147
<br />Propylbenzene, n-0.995 1.012 mg/Kg 102 79 -131
<br />Styrene 0.995 1.013 mg/Kg 102 80 -129
<br />1,1,1,2-Tetrachloroethane 0.995 1.021 mg/Kg 103 78 -125
<br />1,1,2,2-Tetrachloroethane 0.995 0.9332 mg/Kg 94 74 -133
<br />Tetrachloroethene 0.995 0.9549 mg/Kg 96 80 -129
<br />Tetrahydrofuran 1.99 1.857 mg/Kg 93 68 -150
<br />Toluene 0.995 1.009 mg/Kg 101 80 -126
<br />1,2,3-Trichlorobenzene 0.995 0.8513 mg/Kg 86 48 -148
<br />1,2,4-Trichlorobenzene 0.995 0.8324 mg/Kg 84 70 -125
<br />1,1,1-Trichloroethane 0.995 1.057 mg/Kg 106 79 -136
<br />1,1,2-Trichloroethane 0.995 1.032 mg/Kg 104 80 -130
<br />Trichloroethene 0.995 1.019 mg/Kg 102 80 -137
<br />1,2,3-Trichloropropane 0.995 0.9695 mg/Kg 97 66 -142
<br />1,1,2-Trichlorotrifluoroethane 0.995 1.028 mg/Kg 103 64 -150
<br />1,2,4-Trimethylbenzene 0.995 1.077 mg/Kg 108 79 -128
<br />1,3,5-Trimethylbenzene 0.995 0.9970 mg/Kg 100 80 -125
<br />Xylenes, Total 1.99 2.175 mg/Kg 109 80 -132
<br />4-Bromofluorobenzene (Surr)79 -120
<br />Surrogate
<br />101
<br />LCS LCS
<br />Qualifier Limits%Recovery
<br />100Dibromofluoromethane (Surr)80 -124
<br />104Toluene-d8 (Surr)78 -120
<br />Eurofins Cedar Falls
<br />Page 43 of 90 5/17/2022
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