Extent of waterbodies with impaired water quality is a required measure under the air and water indicator. The air and water indicator is under the human-caused change monitoring question for the natural quality.

This measure is reported as a single value. The wilderness was designated in 1978, so we constrain our analysis to observations between 1978 and 2025.

The space below will show something interesting, like a graph or a map, about this measure for this reporting period.