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Attachment A (cont.) WATER QUALITY - SUGGESTED METHODS OF ANAI YRIS <br />CHEMICAL PARAMETERS <br />UNITS <br />METHOD OF ANALYSIS" <br />pH (field) pH Units field pH meter <br />Specific Conductance (field) uhmo/cm @ 25°C Wheatstone Bridge (Specific Conductance Meter) <br />Temperature (field) °C Field thermometer <br />Total Dissolved Solids mgA Filtrate evaporation; calculation <br />Total Suspended Solids mgA Glass fiber filtration 103° -105° <br />Oil and Grease mg/I Liquid-liquid extraction with trichlorotrifluoroethane <br />Sodium Adsorption Ratio - Calculation <br />Dissovled Oxygen (field) mg/I as 02 Membrane electrode <br />Bicarbonate (HCO-3) mgA Titration; electrometric; manual or automated method - <br />methyl orange atomic absorption <br />Calcium (Ca 12) mgA EDTA titration <br />Carbonate (CO73) mgA Titration; electrometric; manual or automated method - <br />methyl orange <br />Chloride (Cl') mgA Silver nitrate; mercuric nitrate; automated colorimetric- <br />ferrigcyanide <br />Magnesium (Mg+2) mg/I Atomic absorption; gravimetric <br />Ammonia (NH3) mg/I Automated colorimetric phenate; distillation <br />Nitrate-Nitrite mg/I Automated (cadmium reduction); automated (hydrazine <br />reduction) <br />Phosphate (POq 3 as P) mg/I Direct single reagent; automated single reagent or <br />stannous chloride <br />Sodium (Na+) mg/I Flame photometric; atomic absorption <br />Sulfate (SO-4) mgA Gravimetric; turbidimetric; automated colorimetric - barium <br />chloranilate <br />Aluminum (Al) mgA Atomic absorption <br />Aresenic (As) mgA Atomic absorption <br />Cadmium (Cd) mgA Atomic absorption <br />Copper (Cu) mg/1 Atomic absorption <br />Iron (Fe) mg/I Atomic absorption <br />Lead (Pb) mgA Atomic absorption <br />Manganese (Mn) mgA Atomic absorption <br />Mercury (Hg) mgA Flameless atomic absorption <br />Molybdenum (Mo) mgA Atomic absorption <br />Selenium (Se) mg/I Atomic absorption <br />Zinc (Zn) mgA Atomic absorption <br />Haaitional metnods may be substituted with prior approval from the Division. <br />A-4