A national review of major lakes ranked water quality across key environmental indicators (nutrients, oxygen levels, turbidity, and dissolved solids).
Top clean large lakes include:
- Lake Superior
- Lake Chelan (WA)
- Lake Hartwell (GA/SC)
- Lake Norman (NC)
- Lake Mead (NV/AZ)
- Flathead Lake (MT)
Notable local mention:
Lake Norman ranks among the cleanest large reservoirs in the U.S., supported by ongoing monitoring and watershed management efforts.
Takeaway for owners/operators:
Water quality and environmental stability continue to influence residential demand, amenity value, and long-term land positioning in lake-adjacent markets.
https://www.worldatlas.com/lakes/the-10-cleanest-lakes-in-the-united-states.html
