What is the cleanest lake in Estrie County, Québec?

Lac Magog in Estrie County is the cleanest lake on the readings in Estrie County, Québec with an EPA water-quality readings of — and 11.5 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 Estrie County, Québec

Lac Magog in Estrie County leads the rankings on measured clarity and nutrients and 11.5 ft of clarity. Below are the top 1 cleanest monitored lakes in Estrie County, Québec, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Lac Magog	Estrie	—	11.5 ft	11 µg/L	4.8 µg/L

Ranked List

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