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' Attachment A (cont.) WATER QUALITY -SUGGESTED METHODS OF ANALYSIS <br />1 <br /> <br /> <br /> <br />1 <br />1 <br />1 <br /> <br /> <br />1 <br />1 <br /> <br />1 <br /> <br /> <br /> <br />CHEMICAL PARAMETERS <br />UNITS <br />METHOD OF ANALYSIS" <br />pH (feld) pH Units field pH meter <br />Specifc Conductance (feld) uhmo/cm @ <br />25°C Wheatstone Bridge (Specific Conductance Meter) <br />Temperature (field) °C Field thermometer <br />Total Dissolved Solids mgll Filtrate evaporation; plculation <br />Total Suspended Solids mgA Glass fiber filtration 103° - 105° <br />Oil and Grease mgA Liquid-liquid extraction with lrichlorotrifluorcethane <br />Sodium Adsorption Ratio - Calculation <br />Dissovled Oxygen (field) mg/I as O, Membrane electrode <br />Bicarbonate (HCO-,) mgA Titration; electrometric; manual or automated method -methyl <br />orange atomic absorption <br />Calcium (Ca'~ mgll EDTA titration <br />Carbonate (CO',) mg/l Titration; electromelric; manual or automated method -methyl <br />orange <br />Chloride (C~) mgA Silver nitrate; mercuric nitrate; automated colorimetric- <br />fertigcyanide <br />Magnesium (Mg ') mg/I Atomic absorption; gravimetric <br />Ammonia (NH,) mg/I Automated colorimetric phenate; distillation <br />Nitrate-Nitrite ng/l Automated (cadmium reduction); automated (hydrazine <br />reduction) <br />Phosphate (PO,' as P) ngA Direct single reagent; automated single reagent or stannous <br />chloride <br />Sodium (Na') mg/I Flame photometric; atomic absorption <br />Sulfate (SO',) mgA Grevimetric; turbidimetric; automated colorimetric -barium <br />chloranilale <br />Aluminum (AI) mgA Atomic absorption <br />Aresenic (As) mgll Atomic absorption <br />Cadmium (Cd) mgll Atomic absorption <br />Copper (Cu) mg/1 Atomic absorption <br />Iron (Fe) mgA Atomic absorption <br />Lead (Pb) mg/I Atomic absorption <br />Manganese (Mn) mg/I Atomic absorption <br />Mercury (Hg) mg/I Flameless atomic absorption <br />Molybdenum (Mo) mgA Atomic absorption <br />Selenium (Se) mgA Atomic absorption <br />Zinc (Zn) mg/I Atomic absorption <br />' Addiflonal methods may be substituted with prior approval from the Division. <br />A-4 <br />1 <br />