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Table 3-4 <br /> LABORATORY ANALYTICAL METHODS FOR CHEMICALS IN WATER SAMPLES <br /> Method Detection <br /> Category No. Reference Limit (ug/kg) <br /> Sb, As, Be, Ba, 200 series a - 10-100 <br /> Cd, Cr, Co, Cu (AA or ICP) <br /> Pb, Mo, Ni , Se, <br /> Ag, T1, V, Zn <br /> Mercury 245 a 0.5 <br /> Chromium (VI ) 218. 5 a 50 <br /> Sulfide 376 a 50 <br /> Cyanide 335 a 10 <br /> Fluoride 340/300c a 0. 1 <br /> Dissolved Oxygen 360.2 a 0.0 <br /> Chloride 325/300c a 10 <br /> Dissolved Organic 415. 1 a not available <br /> Carbon <br /> Nitrite 354/300c a 1 <br /> Nitrate 352/300c a 1 <br /> Sulfate 375/300c a 10 b <br /> Purgeable 601 d 0.02-2 <br /> Halocarbons <br /> Purgeable 602 d 0.2-4b <br /> Aromatics <br /> Phenols 604 d 0.2-20bb <br /> PAHs 610 d 0.02-2. 5b <br /> Purgeables 624 d 5-10b <br /> Base/Neutral 625 d 10-50 <br /> . & Acids <br /> pH 150 a not applicable <br /> a Methods for Chemical Analysis of Water & Wastes, EPA 600/4-79-020. <br /> bMaximum Range for group. <br /> cThe determination of Inorganic Anions in Water by Ion Chromatograph - <br /> Method 300.0, EPA 600/4-84-017, March 1984. <br /> d,Guidelines Establishing Test Procedures for the Analysis for Pollutants <br /> Under the Clean Water Act", 40 CFR Part 136, EPA, October 26, 1984. <br /> 'a <br /> 3-27 <br />