What is the cleanest lake in La Côte-de-Beaupré County, Québec?

Lac la Retenue in La Côte-de-Beaupré County is the cleanest lake on the readings in La Côte-de-Beaupré County, Québec with an EPA water-quality readings of — and 8.4 feet of water clarity.

How are these rankings calculated?

Nutrients and algae, total phosphorus, nitrogen, chlorophyll-a and turbidity, are read against EPA National Lakes Assessment 2022 condition classes for that lake’s ecoregion. Water clarity (Secchi depth) is measured and shown; it is not the letter. Lakes without enough recent samples are UNRATED, not given an F. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in La Côte-de-Beaupré County, Québec

Lac la Retenue in La Côte-de-Beaupré County leads the rankings on measured clarity and nutrients and 8.4 ft of clarity. Below are the top 1 cleanest monitored lakes in La Côte-de-Beaupré County, Québec, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Lac la Retenue	La Côte-de-Beaupré	—	8.4 ft	10.4 µg/L	1 µg/L

Ranked List

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