Summary Correlation between quality and quantity of available drinking water and household income. Equitable access to clean, plentiful drinking water is considered to be a human and cultural right. Ensuring that this basic right is met is a societal responsibility and helps us to understand equity. General Information What is it? Equitable access to clean, plentiful drinking water is considered to be a human and cultural right. Ensuring that this basic right is met is a societal responsibility and helps us to understand equity under the Water Plan.