PHYSICO-CHEMICAL CHARACTERIZATION TYPICAL VALUE (AVERAGE) pH 6.14 Total Mineralization (mg/L) 30.00 Silica (mg/L of SiO2 - ) 13.50 Chloride (mg/L of Cl-) 2.18 Hydrogencarbonate (mg/L of HCO3 - ) 6.90 Nitrate (mg/L of NO3 - ) 1.90 Sodium (mg/L of Na+) 3.80 Magnesium (mg/L of Mg2+) 0.31