The Water Agency's water supply system consistently provides the highest quality drinking water available. Because of the unique nature of the collector well system, the water supply has been free of the water quality concerns that affect many public water systems throughout the United States. Fluoride is not added to the Water Agency's water.
The Water Agency operates under a water supply permit issued by the State Department of Health Services. This permit requires the Water Agency to operate and maintain its water supply system in compliance with state water law. This permit includes water quality monitoring requirements and various other conditions and criteria. The Water Agency consistently meets state and national standards for drinking water quality.
The quality of drinking water is generally considered in two ways: the presence of contaminants that might cause adverse health effects, and properties of water that affect aesthetics. Contaminants that may cause adverse health effects include inorganic and organic chemicals, and microbiological contaminants. The aesthetic qualities of drinking water include characteristics that make the water unpalatable or bothersome to customers. Examples are hardness, taste, odor, color, temperature and the tendency to discolor plumbing fixtures.
Until 1995, Water Agency water received only chlorination to provide residual disinfection throughout the transmission system. In 1995, the Water Agency began adjusting the pH of its water with sodium hydroxide to address the inherent characteristics of Russian River water that tend to corrode copper plumbing.