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' uperior <br /> _ Analytical Laboratory <br /> r <br /> EPA SW-846 Method 8270 Semivolatile Organics by GC/MS <br /> Quality Assurance and Control Data <br /> r Laboratory Number: 22212 <br /> Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> conc. % % t <br /> pyrene ND 16500 21000/19000 127/115 35-142 10 <br /> >> Surrogate Recoveries (t) << <br /> 2-fluorophenol 77/70 25-121 <br /> phenol-d5 80/75 24-113 <br /> nitrobenzene-d5 78/76 23-120 <br /> 2-fluorobiphenyl 85/82 30-115 <br /> 2,4,6-tribromophenol 90/91 19-122 <br /> terphenyl-d14 118/109 18-137 <br /> r <br /> r <br /> r <br /> Iefinitions: <br /> ND = Not Detected <br /> L = Reporting Limit <br /> �k = Not Analysed <br /> RPD = Relative Percent Difference <br /> 3/L = parts per billion (ppb) ug/kg = parts per billion (ppb) <br /> 3/L = parts per million (ppm) mg/kg = parts per million (ppm) <br /> Page 9 of 9 <br />