What is the cleanest lake in La Matapédia County, Québec?

Lac Humqui in La Matapédia County is the cleanest lake on the readings in La Matapédia County, Québec with an EPA water-quality readings of — and 17.7 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 Matapédia County, Québec

Lac Humqui in La Matapédia County leads the rankings on measured clarity and nutrients and 17.7 ft of clarity. Below are the top 13 cleanest monitored lakes in La Matapédia County, Québec, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Lac Humqui	La Matapédia	—	17.7 ft	5.4 µg/L	1.7 µg/L
2	Lac Au Saumon	La Matapédia	—	11.5 ft	9.3 µg/L	4.2 µg/L
3	Lac des Huit Milles	La Matapédia	—	9.8 ft	7.9 µg/L	3.4 µg/L
4	Lac Rouge	La Matapédia	—	9.4 ft	10.4 µg/L	3.7 µg/L
5	Lac MatapéDia	La Matapédia	—	15.1 ft	5.4 µg/L	2.4 µg/L
6	Lac Huit Mille	La Matapédia	—	23.1 ft	3.9 µg/L	1.3 µg/L
7	Lac Saint-Pierre	La Matapédia	—	16.4 ft	2.7 µg/L	1.6 µg/L
8	Lac Indien	La Matapédia	—	6.9 ft	9.6 µg/L	2.6 µg/L
9	Lac à Pitre	La Matapédia	—	11.2 ft	7 µg/L	2 µg/L
10	Lac Angus	La Matapédia	—	19 ft	4.9 µg/L	1.6 µg/L
11	Lac de Saint-Damase	La Matapédia	—	4.6 ft	19.6 µg/L	13.1 µg/L
12	Lac Michaud	La Matapédia	—	5.2 ft	19.9 µg/L	13.4 µg/L
13	Lac du QuinzièMe Mille	La Matapédia	—	17.7 ft	3.7 µg/L	2 µg/L

Ranked List

More Answers for La Matapédia County, Québec