Examines a theoretical basis for the chemical behavior of ocean waters, estuaries, rivers, lakes, groundwaters, and soil water systems. Covers the processes involved in water treatment, comparing real systems with idealized counterparts or models. Discusses chemical processes affecting the distribution and circulation of chemical substances with an ecological perspective on pollution and its control. Also shows the application of elementary principles of physical chemistry, the interplay of chemical equilibria and kinetic considerations, in isolating and identifying some of the variables which affect the composition of the water. Includes numerous graphs and illustrations.