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MED-Tox <br /> ASSOCIATES MC <br />' PAGE 59 OF 61 <br /> I <br /> DATE EXTRACTED: 05/03/91 MED-TOX JOB NO: 9105035 <br /> DATE ANALYZED: 05/08/91 <br /> SAMPLE SPIKED: POLAR WATER INSTRUMENT: 11 <br /> MATRIX SPIKE RECOVERY SUMMARY <br /> METHOD 8270 <br /> (WATER MATRIX) <br /> Spi ke Sample HS FmSD Average <br /> Conc. Result Result Result Percent <br /> ANALYTE (ug/L) (ug/L) (ug/L) (ug/L) Recovery RPD <br /> Phenot 150 ND 62.8 563 39.7 10.9 <br /> 2-Chlorophenol 149 ND 63.0 54.5 39.4 14.4 <br /> 1,4-Dichlorobenzene 143 ND 55.5 49.8 36.8 10.8 <br /> N-Nitroso-dT-n-propylamine 154 ND 74-1 70.1 46.8 5.5 <br /> 1,2,4-TrTchtorobenzene 152 ND 62-8 59.4 40.2 5-6 <br /> 4-Chloro-3-methytphenot 145 NO 73.8 75.1 51.3 1.7 <br /> Acenaphthene 146 ND 74.3 76.4 51.6 2.7 <br />' 4-Nitrophenol 145 ND 102.0 107.0 72.1 4.7 <br /> 2,4-Dinitratoluene 120 ND 93.3 99-6 80.4 6.5 <br /> Pentachlorophenol 153 ND 109.0 115.0 73_2 5.4 <br /> Pyrene 153 ND 145.0 141.0 93.5 2.8 <br />' CURRENT QC LIMITS <br /> Analyte Percent Recovery RPD <br /> Phenol (12- 89) 42 <br /> 2-Chlorophenol (27-123) 40 <br /> 1, 4-Dichlorobenzene (36- 97) 28 <br /> N-Nitroso-di--n-propylamine (41-116) 38 <br /> 1., 2, 4-Trichlorobenzene (39- 98) 28 <br /> 4-Chloro-3-methylphenol (23- 97) 42 <br /> Acenaphthene (46-118) 31 <br /> 4-Nxtrophenol (10- 80) 50 <br /> 2, 4-Dinitrotoluene (24- 96) 38 <br /> Pentachlorophenol ( 9-103) 50 <br /> Pyrene (26-127) 31 <br /> IMS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD - Relative Percent Difference <br /> ND = Not Detected <br />