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rt <br /> r <br /> r Superior <br /> Analytical Laboratory <br />' EPA SW-846 Method 8270 Semlvolatile Organics by GC/MS <br /> Quality Assurance and Control Data <br /> Laboratory Number 20843 <br />' Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> conc <br />' For Water Matrix (ug/L) <br /> CA301.24 11 / 12 - Laboratory Control Spikes <br />' phenol 100 35/32 35/32 12-110 9 <br /> 2-chlorophenol 100 82/76 82/76 27-123 8 <br />' 1,4-dichlorobenzene 50 35/28 70/56 -36-97 22 <br /> n-nitroso-di.-n-propylamine 50 49/48 98/96 41-116 -2 <br /> 1,2,4-trzchlorobenzene 50 36/31 72/62 39-98 15 <br /> 4--chloro-3-methylphenol 100 84/81 84/81 23-97 4 <br /> Acenaphthene 50 41/43 82/86 46-118 5 <br /> 2,4-dinitrotoluene 50 44/46 88/92 24-104 4 <br /> 4-nitrophenol 100 15/18 15/18 10-80 18 <br /> 10entachlorophenol 100 85/94 85/94 9-103 10 <br /> pyrene 50 49/46 98/92 26-127 6 <br /> » Surrogate Recoveries M ¢< <br /> 2-fluorophenol 47/45 21-110 <br /> phenol-d5 29/28 10-110 <br /> nitrobenzene-d5 79/77 35-114 <br /> 2-fluorobiphenyl 81/78 43-116 <br /> 2,4,6-tri.bromophenol 80/82 10-123 <br /> terphenyl-d14 86/79 33-141 <br /> For Soil Matrix (ug/Kg) - <br /> CA302 24 04 / 05 - Laboratory Control Spikes <br /> phenol 3300 2900/2800 88/85 26-90 3 <br /> 2-chlorophenol 3300 2900/2800 88/85 25-102 3 <br /> 1,4-dichlorobenzene 1650 1600/1600 97/97 28-104 0 <br /> n-nitroso-di-n-propylamine 1650 1600/1600 97/97 41-126 0 <br /> 1,2,4-trichlorobenzene 1650 1600/1500 97/91 38-107 6 <br /> 4-chloro-3-methylphenol 3300 2800/2600 85/79 26-103 7 <br /> Acenaphthene 1650 1600/1600 97/97 31-137 0 <br /> 2,4-dinitrotoluene 1650 1300/1400 79/85 28-118 7 <br /> 4-nitrophenol 3300 3400/3300 103/100 11-114 3 <br /> pentachlorophenol 3300 3300/3000 100/91 17-109 9 <br /> 6 <br /> Page 8 of 10 <br />