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Geo nal tical Laboratories,l .n <br /> y c <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209)572-0900 Fax (209) 572-0916 <br /> Report# Q289-01 QC REPORT <br /> San Joaquin County Environmental Health Dates Analyzed 10/29/04 <br /> 304 E.Weber 3rd Floor <br /> Stockton CA 95202 <br /> % Recovery Duplicate % RPD Blank <br /> Analyte Batch # Method Recovery <br /> 1,4-Dichlorobenzene SVO0395 8270 TCLP 80.4 78.6 2.2 ND <br /> n-Nitrosopropylamine 95.8 96.9 1.2 ND <br /> 1,2,4-Trichlorobenzene 77.8 76.4 1.8 ND <br /> Acenaphthene 84.7 84.6 0.1 ND <br /> 2,4-Dinitrotoluene 84.7 91.1 7.3 ND <br /> Pyrene 88.0 86.8 1.4 ND <br /> Phenol 46.8 46.5 0.7 ND <br /> 2-Chlorophenol 95.2 92.7 2.6 ND <br /> 4-Chloro-3-methylphenol 83.8 88.3 5.2 ND <br /> 4-Nitrophenol 78.1 76.9 1.5 ND <br /> Pentachlorophenol 98.1 98.0 0.1 ND <br /> Comments: <br /> A y/I�lf <br /> Gre- gory Merciadis Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />