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QC Sample Results <br />Client: GHD Services Inc. Job ID: 320-84307-1 <br />Project/Site: RFR - Simplot Lathrop <br />Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) <br />Lab Sample ID: LCS 320-562623/7 Client Sample ID: Lab Control Sample <br />Matrix: Solid Prep Type: Total/NA <br />Analysis Batch: 562623 <br />Analyte <br />Spike <br />Added <br />LCS LCS <br />Result Qualifier Unit D %Rec <br />%Rec. <br />Limits <br />Vinyl chloride 0.0500 0.0421 mg/Kg 84 67 - 127 <br />m-Xylene & p-Xylene 0.0500 0.0456 mg/Kg 91 73 - 128 <br />o-Xylene 0.0500 0.0478 mg/Kg 96 76 _ 127 <br />Xylenes, Total 0.100 0.0934 mg/Kg 93 75 - 122 <br />LCS LCS <br />Surrogate %Recovery Qualifier Limits <br />4-Bromofluorobenzene (Surr) 99 63 -143 <br />1,2-Dichloroethane-d4 (Surr) 95 32 -156 <br />Toluene-d8 (Surr) 97 63 -138 <br />Dibromofluoromethane (Surr) 94 55-129 <br />Lab Sample ID: LCSD 320-562623/8 <br />Matrix: Solid <br />Analysis Batch: 562623 <br />Client Sample ID: Lab Control Sample Dup <br />Prep Type: Total/NA <br />Analyte <br />Spike <br />Added <br />LCSD LCSD <br />Result Qualifier Unit D %Rec <br />%Rec. <br />Limits RPD <br />RPD <br />Limit <br />Acetone 0.125 0.116 mg/Kg 93 64 - 128 7 36 <br />Benzene 0.0500 0.0442 mg/Kg 88 78 _ 128 3 37 <br />Bromobenzene 0.0500 0.0472 mg/Kg 94 67- 132 0 40 <br />Bromochloromethane 0.0500 0.0477 mg/Kg 95 80 - 127 6 36 <br />Bromodichloromethane 0.0500 0.0485 mg/Kg 97 80 _ 137 2 37 <br />Bromoform 0.0500 0.0509 mg/Kg 102 80 _ 136 1 45 <br />Bromomethane 0.0500 0.0463 mg/Kg 93 48 - 164 0 38 <br />2-Butanone (MEK) 0.125 0.116 mg/Kg 93 71 -142 2 44 <br />n-Butylbenzene 0.0500 0.0468 mg/Kg 94 68 _ 136 1 37 <br />sec-Butylbenzene 0.0500 0.0453 mg/Kg 91 68 - 131 3 40 <br />tert-Butylbenzene 0.0500 0.0447 mg/Kg 89 67 - 131 3 42 <br />Carbon disulfide 0.0500 0.0410 mg/Kg 82 52- 145 1 46 <br />Carbon tetrachloride 0.0500 0.0426 mg/Kg 85 62 - 154 1 43 <br />Chlorobenzene 0.0500 0.0462 mg/Kg 92 74 _ 125 1 38 <br />Chloroethane 0.0500 0.0406 mg/Kg 81 54 - 148 5 34 <br />Chloroform 0.0500 0.0463 mg/Kg 93 78 - 135 0 23 <br />Chloromethane 0.0500 0.0389 mg/Kg 78 60- 141 1 36 <br />2-Chlorotoluene 0.0500 0.0460 mg/Kg 92 64 _ 127 2 41 <br />4-Chlorotoluene 0.0500 0.0461 mg/Kg 92 67 _ 128 1 40 <br />1,2-Dibromo-3-Chloropropane 0.0500 0.0547 mg/Kg 109 75 - 137 4 48 <br />1,2-Dibromoethane (EDB) 0.0500 0.0500 mg/Kg 100 80 - 124 1 39 <br />Dibromochloromethane 0.0500 0.0503 mg/Kg 101 80 - 133 2 24 <br />Dibromomethane 0.0500 0.0505 mg/Kg 101 80 _ 129 1 37 <br />1,2-Dichlorobenzene 0.0500 0.0489 mg/Kg 98 68 - 121 1 28 <br />1,3-Dichlorobenzene 0.0500 0.0465 mg/Kg 93 64 _ 126 1 41 <br />1,4-Dichlorobenzene 0.0500 0.0468 mg/Kg 94 65 _ 124 1 38 <br />Dichlorodifiuoromethane 0.0500 0.0356 mg/Kg 71 60 _ 130 3 46 <br />1,1-Dichloroethane 0.0500 0.0448 mg/Kg 90 76 - 134 1 24 <br />1,2-Dichloroethane 0.0500 0.0498 mg/Kg 100 66- 150 2 36 <br />cis-1,2-Dichloroethene 0.0500 0.0451 mg/Kg 90 74- 131 1 37 <br />trans-1,2-Dichloroethene 0.0500 0.0426 mg/Kg 85 67- 135 0 37 <br />1,1-Dichloroethene 0.0500 0.0410 mg/Kg 82 66 - 136 3 42 <br />Eurofins Sacramento <br />6 <br />El <br />8 <br />Page 15 of 26 2/7/2022