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ff <br /> uperior <br /> Analytical Laboratory <br /> — EPA SW-846 Method 8270 Semivolatile Organics by GC/MS <br /> Quality Assurance and Control Data <br /> — Laboratory Number: 22212 <br /> Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> — con.. <br /> For Soil Matrix (ug/Kg) <br /> ` CL181.24 10 / 11 - Laboratory Control Spikes <br /> phenol 3300 2333/2278 71/69 26-90 3 <br /> 2-chlorophenol 3300 2482/2482 75/75 25-102 0 <br /> 1,4-dichlorobenzene 1650 1194/1206 72/73 28-104 1 <br /> — n-nitroso-di-n-propylamine 1650 1162/1144 70/69 41-126 1 <br /> 1,2,4-trichlorobenzene 1650 1264/1257 77/76 38-124 1 <br /> 4-chloro-3-methylphenol 3300 2395/2384 73/72 26-103 1 <br /> Acenaphthene 1650 1201/1209 73/73 31-137 0 <br /> ` 2,4-dinitrotoluene 1650 1157/1185 70/72 28-118 3 <br /> 4-nitrophenol 3300 1930/2006 58/61 11-114 5 <br /> pentachlorophenol 3300 1577/1659 48/50 17-109 4 <br /> — pyrene 1650 1724/1886 104/114 35-142 9 <br /> > Surrogate Recoveries « <br /> — 2-fluorophenol 87/87 25-121 <br /> phenol-d5 84/83 24-113 <br /> nitrobenzene-d5 86/85 23-120 <br /> 2-fluorobiphenyl 86/87 30-115 <br /> — 2,4,6-tribromophenol 82/85 19-122 <br /> terphenyl-d14 107/117 18-137 <br /> .. For Soil Matrix (ug/Kg) <br /> CL181.24 12 / 13 - Sample Spiked: 22212 - 01 <br /> r <br /> phenol ND 33000 24000/23000 73/70 26-90 4 <br /> 2-chlorophenol ND 33000 26000/25000 79/76 25-102 4 <br /> 1,4-dichlorobenzene ND 16500 13000/12000 79/73 28-104 8 <br /> — n-nitroso-di-n-propylamine ND 16500 13000/13000 79/79 41-126 0 <br /> 1,2,4-trichlorobenzene ND 16500 14000/13000 85/79 38-124 7 <br /> 4-chloro-3-methylphenol ND 33000 27000/27000 82/82 26-103 0 <br /> Acenaphthene ND 16500 14000/14000 85/85 31-137 0 <br /> 2,4-dinitrotoluene ND 16500 14000/14000 85/85 28-118 0 <br /> 4-nitrophenol ND 33000 26000/26000 79/79 11-114 0 <br /> _ pentachlorophenol ND 33000 23000/23000 70/70 17-109 0 <br /> Page 8 of 9 <br />