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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 />4-Bromofluorobenzene (Surr)80 -120 <br />Surrogate <br />97 <br />MS MS <br />Qualifier Limits%Recovery <br />101Dibromofluoromethane (Surr)79 -120 <br />104Toluene-d8 (Surr)79 -120 <br />Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-229839-B-26 MSD <br />Matrix: Water Prep Type: Total/NA <br />Analysis Batch: 351212 <br />Acetone <10.0 50.0 40.74 ug/L 81 37 -150 11 29 <br />Analyte <br />MSD MSD <br />DUnitResultQualifier %Rec <br />Spike <br />Added <br />Sample <br />Result <br />Sample <br />Qualifier <br />%Rec <br />Limits LimitRPD <br />RPD <br />Allyl chloride <2.00 25.0 18.03 ug/L 72 38 -150 16 32 <br />Benzene <0.500 25.0 21.96 ug/L 88 54 -128 0 21 <br />Bromobenzene <1.00 25.0 22.74 ug/L 91 47 -139 0 23 <br />Bromochloromethane <5.00 25.0 20.97 ug/L 84 63 -143 2 24 <br />Bromodichloromethane <1.00 25.0 22.47 ug/L 90 50 -135 0 24 <br />Bromoform <5.00 25.0 20.55 ug/L 82 40 -139 6 22 <br />Butylbenzene, n-<1.00 25.0 22.93 ug/L 92 30 -133 4 20 <br />Butylbenzene, sec-<1.00 25.0 22.70 ug/L 91 34 -136 6 20 <br />Butylbenzene, tert-<1.00 25.0 22.52 ug/L 90 39 -137 5 20 <br />Carbon tetrachloride <2.00 25.0 20.93 ug/L 84 47 -136 1 23 <br />Chlorobenzene <1.00 25.0 21.70 ug/L 87 49 -135 2 21 <br />Chloroform <3.00 25.0 21.60 ug/L 86 55 -131 2 23 <br />2-Chlorotoluene <1.00 25.0 24.13 ug/L 97 46 -134 4 22 <br />4-Chlorotoluene <1.00 25.0 23.95 ug/L 96 44 -136 4 22 <br />Dibromo-3-chloropropane, 1,2-<5.00 25.0 20.95 ug/L 84 41 -150 8 31 <br />Dibromochloromethane <5.00 25.0 20.89 ug/L 84 45 -141 1 26 <br />Dibromoethane, 1,2-<1.00 25.0 21.40 ug/L 86 53 -137 1 23 <br />Dibromomethane <1.00 25.0 21.38 ug/L 86 57 -140 5 24 <br />Dichlorobenzene, 1,2-<1.00 25.0 24.39 ug/L 98 46 -136 3 22 <br />Dichlorobenzene, 1,3-<1.00 25.0 23.88 ug/L 96 43 -136 3 22 <br />Dichlorobenzene, 1,4-<1.00 25.0 24.09 ug/L 96 44 -134 1 20 <br />Dichloroethane, 1,1-<1.00 25.0 21.85 ug/L 87 58 -131 2 24 <br />Dichloroethane, 1,2-<1.00 25.0 22.53 ug/L 90 51 -138 2 20 <br />Dichloroethylene, 1,1-<2.00 25.0 18.27 ug/L 73 52 -137 5 23 <br />Dichloroethylene, cis-1,2-<1.00 25.0 21.05 ug/L 84 55 -131 3 23 <br />Dichloroethylene, trans-1,2 <1.00 25.0 19.90 ug/L 80 52 -132 5 25 <br />Dichloromethane <5.00 25.0 18.48 ug/L 74 43 -150 1 25 <br />Dichloropropane, 1,2-<1.00 25.0 22.69 ug/L 91 58 -134 0 26 <br />Dichloropropane, 1,3-<1.00 25.0 20.67 ug/L 83 53 -145 1 25 <br />Dichloropropane, 2,2-<4.00 25.0 17.59 ug/L 70 20 -150 2 32 <br />Dichloropropene, 1,1-<1.00 25.0 20.57 ug/L 82 51 -130 3 23 <br />Dichloropropene, cis 1,3-<5.00 25.0 20.77 ug/L 83 45 -131 0 21 <br />Dichloropropene, trans 1,3-<5.00 25.0 19.56 ug/L 78 43 -133 1 23 <br />Diethyl ether <2.00 25.0 23.25 ug/L 93 57 -134 19 24 <br />Ethylbenzene <1.00 25.0 22.01 ug/L 88 40 -138 2 21 <br />Hexachlorobutadiene <5.00 25.0 17.97 ug/L 72 19 -150 6 35 <br />Isopropylbenzene <1.00 25.0 22.04 ug/L 88 42 -132 2 21 <br />p-Isopropyltoluene <1.00 25.0 23.26 ug/L 93 35 -134 6 20 <br />Methyl ethyl ketone (MEK)<10.0 50.0 45.41 ug/L 91 47 -150 0 24 <br />4-Methyl-2-pentanone (MIBK)<10.0 50.0 44.22 ug/L 88 51 -144 5 20 <br />Methyl tert-butyl ether <1.00 25.0 22.74 ug/L 91 56 -132 5 25 <br />Eurofins Cedar Falls <br />Page 64 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