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WG1722255 QUALITY CONTROL SUMMARY <br /> Volatile Organic Compounds (GC/MS) by Method 8260B L1388062-03,06,10 <br /> Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) FP1(LCS)R3692350-1 08/12/2115:55•(LCSD)R3692350-2 08/12/2116:14 <br /> Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec.Limits LCS Qualifier LCSD Qualifier RPD RPD Limits FC <br /> Analyte mg/kg mg/kg mg/kg % % % % % <br /> Naphthalene 0.125 0.0762 0.0833 61.0 66.6 59.0-130 8.90 20 <br /> n-Propylbenzene 0.125 0.114 0.125 91.2 100 74.0-126 9.21 20 FSS <br /> Styrene 0.125 0.136 0.139 109 ill 72.0-127 2.18 20 <br /> 1,1,1,2-Tetrachloroethane 0.125 0.140 0.136 112 109 74.0-129 2.90 20 rCn <br /> 1,1,2,2-Tetrachloroethane 0.125 0.128 0.129 102 103 68.0-128 0.778 20 <br /> Tetrachloroethene 0.125 0.156 0.165 125 132 70.0-136 5.61 20 <br /> Toluene 0.125 0.138 0.145 110 116 75.0-121 4.95 20 s <br /> Sr <br /> 1,1,2-Trichlorotrifluoroethane 0.125 0.128 0.128 102 102 61.0-139 0.000 20 <br /> 1,2,3-Trichlorobenzene 0.125 0.0764 0.0852 61.1 68.2 59.0-139 10.9 20 <br /> 1,2,4-Trichlorobenzene 0.125 0.0962 0.108 77.0 86.4 62.0-137 11.6 20 <br /> 1,1,1-Trichloroethane 0.125 0.117 0.128 93.6 102 69.0-126 8.98 20 <br /> 1,1,2-Trichloroethane 0.125 0.145 0.145 116 116 78.0-123 0.000 20 7G1 <br /> Trichloroethene 0.125 0.144 0.155 115 124 76.0-126 7.36 20 <br /> Trichlorofluoromethane 0.125 0.115 0.128 92.0 102 61.0-142 10.7 20 <br /> 1,2,3-Trichloropropane 0.125 0.119 0.120 95.2 96.0 67.0-129 0.837 20 FAI <br /> 1,2,3-Trim ethyl benzene 0.125 0.108 0.114 86.4 91.2 74.0-124 5.41 20 <br /> 1,2,4-Trimethylbenzene 0.125 0.109 0.117 87.2 93.6 70.0-126 7.08 20 [SC <br /> 1,3,5-Trim ethyl benzene 0.125 0.112 0.121 89.6 96.8 73.0-127 7.73 20 <br /> Vinyl chloride 0.125 0.134 0.153 107 122 63.0-134 13.2 20 <br /> Xylenes,Total 0.375 0.407 0.430 109 115 72.0-127 5.50 20 <br /> (S)Toluene-d8 106 104 75.0-131 <br /> (S)4-Bromofluorobenzene 98.4 97.7 67 0-138 <br /> (S)1,2-Dich/oroethane-d4 81.9 83.0 70.0-130 <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> Fulcrum Resources Env-Monrovia,CA 202107-8656 L1388062 08/16/21 15:01 35 of 43 <br />