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COLUM 31A ANALYTICAL SERVICES,INC. <br /> Analytical Report <br /> Client: EMCON Associates Service Request: K947479S <br /> Project: Foothill\#0939-004.08 Date Collected: NA <br /> Sample Matrix: Water Date Received: NA <br /> Date Extracted: 12/5/94 <br /> Base Neutral/Acid Semivolatile Organic Compounds <br /> EPA Methods 3520/8270 <br /> Units: ug/L(ppb) <br /> Sample Name: Method Blank <br /> Lab Code: K941205-WB 1 <br /> Date Analyzed: 12/7/94 <br /> Acid Analyte PQL MDL <br /> Phenol 10 0.2 ND <br /> 2-Chlorophenol 10 0.3 ND <br /> Benzyl Alcohol 10 0.3 ND <br /> 2-Methylphenol 10 0.4 ND <br /> 3-and 4-Methylphenol* 10 0.4 ND <br /> 2-Nitrophenol 10 0.4 ND <br /> 2,4-Dimethylphenol 10 1.9 ND <br /> Benzoic Acid 25 1.8 ND <br /> 2,4-Dichlorophenol 10 0.4 ND <br /> 4-Chloro-3-methylphenol 10 0.5 ND <br /> 2,4,6-Trichlorophenol 10 0.4 ND <br /> 2,4,5-Trichlorophenol 10 0.5 ND <br /> 2,4-Dinitrophenol 25 7.3 ND <br /> 4-Nitrophenol 25 6.2 ND <br /> 2-Methyl-4,6-dinitrophenol 25 0.6 ND <br /> Pentachlorophenol 25 0.3 ND <br /> * Quantified as 4-methylphenol. <br /> Approved By: Lvkzzl-� Date: Xl�� <br /> 3S3PBNA/102094 �• / <br /> K947479S.=-8270wBNA(2)V27/95 p, � <br />