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<br />u <br />~i <br />-7- <br />Septe.R+ber 16, 198 <br />TABLE 4. WRTER QUALITY - SUGGESTED lfETHODS OF ANALYS rS * <br />Chemical Sampled <br />Parameter Units Medium '* Method of Analysis *" <br />pH (field) pH Units G,S <br />Specific Conductance uhmo/cm G,S <br />(field) at 25°C <br />Temperature (field) oC S <br />Total Dissolved Solids - mg/Z G,S <br />Total Suspended Solids mg/1 5 <br />Oil and Grease mg/I 5 <br />Sodium Adsorption Ratio - S <br />Dissolved Oxygen mg/2 as S <br />(field) O? <br />Bicarbonate (HC03) mg/Z G,s <br />Calcium (Ca+~) mg/1 G,S <br />Carbonate (CD") mg/1 G <br />Chloride (CZ ) ag/1 G,S <br />Magnesium (Mg+~) mg/Z G,S <br />Ammonia (NH 3) mg/I G <br />Nitrate-Nitrite mg/1 G,s <br />Phosahate (P043 as P) mg/1 G,S <br />Soda um (Pla+) mg/1 G,S <br />Sulfate (504) mg/1 G,S <br />Aluminum (AI) mg/I S <br />Arsenic (As) mg/1 G,S <br />Cadmium (Cd) mg/1 G s <br />Copper (Cu) mq/1 S <br />Iron (Fe) mg/1 G,S <br />lead (Pb) mg/1 S <br />ltanaanese (!~tn) mg/1 G,S <br />Mercury (Hg) mg/1 G,S <br />..<tolybdenum (MO) mg/1 5 <br />Seleniun, (Se) mg/Z G,S <br />Zinc (Zn) ag/1 G,S <br />Field pH meter <br />Nheatstone Bridge (Specific Conductance :4e te- <br />Field thermometer <br />F1ltrate evaporation; calculation <br />Glass fiber filtration 203o-1DSo <br />Liquid-liquid extraction with trichloro- <br />tri f1 uoroethane <br />Calculation <br />1!embrane electrode <br />Titration; electrometric; manual or automated <br />method -methyl orange atomic absorption <br />EDTA titration <br />Titration; electrometric; annual or automated <br />method -methyl orange <br />Silver nitrate; aercuric nitrate; <br />automated colorimetric-ferricyari de <br />Atomic absorption; gravimetric <br />Automated colorimetric phenate; <br />distillation <br />automated (cadmium reduction); automated <br />(hydrazine reduction) <br />Direct single reagent; automated single <br />reagent or stannous chloride <br />Flame photonetric; atomic absorption <br />Gravimetric; turbidimetric; automated <br />colorinetric - barium chZoranilate <br />Atomic absorption <br />Atomic absorption <br />Rtomic absorption <br />Atomic absorption <br />Atomic absorption <br />Atomic absorption <br />Rtomic absorption <br />FlameIess atomic absorption <br />Atomic absorption <br />Atomic absorption <br />Atomic absorption <br />* Rdditional methods may be substituted with prior approval from the Division. <br />"' G = ground water; dissolved species concentration only <br />S surface water (includes springs); total species concentration (dissoZ•red and <br />suspended) <br />•'* References which describe these metF.ods: <br />American Pu31ic Health Assoc.; American water Works Assoc.; and [cater Po1luton <br />Control Federation, 1979, Standard rsethods for the examination of water and <br />