Site-wise water sample analysis: pH at 25° C Conductivity at 25° C Total Hardness as CaCO3 Total Alkalinity as CaCO3 Calcium as Ca Magnesium as Mg Chloride as Cl Sodium as Na Potassium as K Sulphate as SO4 Nitrate as NO3 Ammonia Total Nitrogen Phosphates as PO4 Chemical Oxygen Demand