Miscellaneous Analyses. a. General Mineral Group: The General Mineral samples will be submitted for analyses in two containers: one will be acidified with analytical grade nitric acid for the ICP analysis and the other will be un-preserved for the remaining analyses. Contractor will conduct analyses using the following methods: Analysis Std Method EPA Method Conductivity 2510 B. 120.1 Turbidity 2130 B. 180.1 pH 4500-H B. 150.1 Calcium (Ca) 3120B 200.7 Magnesium (Mg) 3120B 200.7 Sodium (Na) 3120B 200.7 Potassium (K) 3120B 200.7 Chloride (Cl) 4110 300.0 or 300.1 Sulfate (SO4) 4110 300.0 Nitrate Nitrogen(NO3) 4110 300.0 Nitrite Nitrogen(NO2) 4110 300.0 Carbonate, as CO3 2320 B. 310.1 Bicarbonate, as HCO3 2320 B. 310.1 Fluoride (F) 4500-F C 300.1 Carbon Dioxide, calc. 4500-CO2 D. CO2 by Calculation Hardness 2340 C. 130.2 Silica as SiO2 3120 200.7 Boron (B) 3120 200.7 Total Dissolved Solids (TDS) By Addition
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