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<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />t <br /> <br /> <br /> <br /> <br />1 <br />1 <br />1 <br /> <br /> <br />Attachment A (cont.) WATER QUALRY -SUGGESTED METHODS OF ANALYSIS <br />CHEMICAL PARAMETERS <br />UNRS <br />METHOD OF ANALYSIS" <br />pH (field) pH Units field pH meter <br />Specific Conductance (field) uhmo/cm @ 25°C Wheatstone Bridge (Specfic 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 mgA L'quid-liquid extraction with tdchbrotrfiuoroethane <br />Sodium Adsorption Ratb - Calculation <br />Dissoved Oxygen (field) mgA as Ox Membrane electrode <br />Bicarbonate (HCO's) mgA TiVation; eledrometdc; manual or aurnmatedmethod - <br />methylorange atomic absorption <br />Cabium (Ca') mgA EDTA fitration <br />Carbonate (CO'a) mgA Titratbn; eledrometdc; manual or automated method - <br />methyl orange <br />Chbride (Cf) mgA Silver nitrate; mercuric nitrate; automated cobdmetrb- <br />ferigcyanide <br />Magnesium (Mg ') mgA Atomic absorption; gravimetric <br />Ammonia (NHa) mgA Automated cobrimetric phonate; disti~ation <br />Nitrate-Nltdte mgA Automated (cadmium reducton); automated (hydrazine <br />reduction) <br />Phosphate (P0:' as P) mgA Diced single 2agent; automated single reagent or <br />stanrwus chbride <br />Sodium (Na) mgA Flame photometric; atomic absorption <br />Sulfate (SO'.) mg/I Gravimetdc; turbidimetdc; automated cobdmetric -barium <br />chbrandate <br />Aluminum(AI) mgA Atomicabsorptbn <br />Aresenic (AS) mgA Atomic absorption <br />Cadmium (Cd) mgA Atomic absorption <br />Copper(Cu) mg/1 Atomic absorption <br />Iron (Fe) mgA Atomic absorption <br />Leatl (Pb) mgA Atomic absorpton <br />Manganese (Mn) mgA Atomic absorption <br />Mercury (Hg) mgA Flameless atomic absorption <br />Moytxienum (MO) mgA Atomic absorpton <br />Selenium (Se) mgA Atomic absorpton <br />Zinc (Zn) mgA Atomic absorption <br />Adddional methods may be substituted with prior approval from the Division. <br />A-4 <br />