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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 310-351205/7 <br />Matrix: Water Prep Type: Total/NA <br />Analysis Batch: 351205 <br />Bromomethane 20.0 13.20 ug/L 66 22 -150 <br />Analyte <br />LCS LCS <br />DUnitResultQualifier %Rec <br />Spike <br />Added <br />%Rec <br />Limits <br />Chloroethane 20.0 19.48 ug/L 97 61 -139 <br />Chloromethane 20.0 18.79 ug/L 94 48 -150 <br />Dichlorodifluoromethane 20.0 20.22 ug/L 101 50 -150 <br />Dichlorofluoromethane 20.0 19.15 ug/L 96 64 -141 <br />Trichlorofluoromethane 20.0 19.89 ug/L 99 59 -150 <br />Vinyl chloride 20.0 19.54 ug/L 98 65 -141 <br />4-Bromofluorobenzene (Surr)80 -120 <br />Surrogate <br />96 <br />LCS LCS <br />Qualifier Limits%Recovery <br />103Dibromofluoromethane (Surr)79 -120 <br />105Toluene-d8 (Surr)79 -120 <br />Client Sample ID: Matrix SpikeLab Sample ID: 310-229814-B-22 MS <br />Matrix: Water Prep Type: Total/NA <br />Analysis Batch: 351205 <br />Acetone <10.0 50.0 49.77 ug/L 100 37 -150 <br />Analyte <br />MS MS <br />DUnitResultQualifier %Rec <br />Spike <br />Added <br />Sample <br />Result <br />Sample <br />Qualifier <br />%Rec <br />Limits <br />Allyl chloride <2.00 25.0 21.60 ug/L 86 38 -150 <br />Benzene <0.500 25.0 23.38 ug/L 94 54 -128 <br />Bromobenzene <1.00 25.0 24.46 ug/L 98 47 -139 <br />Bromochloromethane <5.00 25.0 21.99 ug/L 88 63 -143 <br />Bromodichloromethane <1.00 25.0 23.48 ug/L 94 50 -135 <br />Bromoform <5.00 25.0 21.52 ug/L 86 40 -139 <br />Butylbenzene, n-<1.00 25.0 22.93 ug/L 92 30 -133 <br />Butylbenzene, sec-<1.00 25.0 22.07 ug/L 88 34 -136 <br />Butylbenzene, tert-<1.00 25.0 22.25 ug/L 89 39 -137 <br />Carbon tetrachloride <2.00 25.0 21.08 ug/L 84 47 -136 <br />Chlorobenzene <1.00 25.0 23.78 ug/L 95 49 -135 <br />Chloroform <3.00 25.0 22.96 ug/L 92 55 -131 <br />2-Chlorotoluene <1.00 25.0 25.15 ug/L 101 46 -134 <br />4-Chlorotoluene <1.00 25.0 24.90 ug/L 100 44 -136 <br />Dibromo-3-chloropropane, 1,2-<5.00 25.0 23.30 ug/L 93 41 -150 <br />Dibromochloromethane <5.00 25.0 22.51 ug/L 90 45 -141 <br />Dibromoethane, 1,2-<1.00 25.0 23.24 ug/L 93 53 -137 <br />Dibromomethane <1.00 25.0 23.09 ug/L 92 57 -140 <br />Dichlorobenzene, 1,2-<1.00 25.0 25.32 ug/L 101 46 -136 <br />Dichlorobenzene, 1,3-<1.00 25.0 23.92 ug/L 96 43 -136 <br />Dichlorobenzene, 1,4-<1.00 25.0 25.20 ug/L 101 44 -134 <br />Dichloroethane, 1,1-<1.00 25.0 23.70 ug/L 95 58 -131 <br />Dichloroethane, 1,2-<1.00 25.0 23.93 ug/L 96 51 -138 <br />Dichloroethylene, 1,1-<2.00 25.0 18.38 ug/L 74 52 -137 <br />Dichloroethylene, cis-1,2-<1.00 25.0 22.55 ug/L 90 55 -131 <br />Dichloroethylene, trans-1,2 <1.00 25.0 20.77 ug/L 83 52 -132 <br />Dichloromethane <5.00 25.0 19.72 ug/L 79 43 -150 <br />Dichloropropane, 1,2-<1.00 25.0 23.69 ug/L 95 58 -134 <br />Dichloropropane, 1,3-<1.00 25.0 22.68 ug/L 91 53 -145 <br />Eurofins Cedar Falls <br />Page 56 of 90 5/17/2022 <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15