Within the Etosha National Park major differences have been found in the chemical quality of water at waterholes. The waterholes in the Wes and South of the Park, descriptionbed as alkaline earth - hydrogencarbonate water, provide water with low and constant electric conductivities. This water's overall chemical quality meets the guidelines (Department of Water Affairs 1991) for human consumption as well as for stockwatering. Keyword: Alkali-saline water, Artesian springs, Chloride, Desert adapted mammals, Moisture content of the forage plants, One omuramba, Pans, Rainy season, Sodium, Spring water pools, Sulphate and Troughs.