What is the cleanest lake in Le Haut-Saint-François County, Québec?

Lac D'Argent in Le Haut-Saint-François County is the cleanest lake on the readings in Le Haut-Saint-François County, Québec with an EPA water-quality readings of — and 12.5 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 Le Haut-Saint-François County, Québec

Lac D'Argent in Le Haut-Saint-François County leads the rankings on measured clarity and nutrients and 12.5 ft of clarity. Below are the top 3 cleanest monitored lakes in Le Haut-Saint-François County, Québec, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Lac D'Argent	Le Haut-Saint-François	—	12.5 ft	6.3 µg/L	2.4 µg/L
2	Lac Miroir	Le Haut-Saint-François	—	12.1 ft	8.2 µg/L	3.3 µg/L
3	Lac Louise	Le Haut-Saint-François	—	4.6 ft	13.1 µg/L	2.6 µg/L

Ranked List

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