What is the cleanest lake in Eastern Ontario County, Ontario?

Colonel by Lake in Eastern Ontario County is the cleanest lake on the readings in Eastern Ontario County, Ontario with an EPA water-quality readings of — and 1.6 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 Eastern Ontario County, Ontario

Colonel by Lake in Eastern Ontario County leads the rankings on measured clarity and nutrients and 1.6 ft of clarity. Below are the top 4 cleanest monitored lakes in Eastern Ontario County, Ontario, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Colonel by Lake	Eastern Ontario	—	1.6 ft	44.1 µg/L	-
2	Greely Lakes	Eastern Ontario	—	6.9 ft	20.5 µg/L	-
3	Water'S Edge Lake	Eastern Ontario	—	3.9 ft	36 µg/L	-
4	Lac Deschenes Lake	Eastern Ontario	—	5.9 ft	15.3 µg/L	-

Ranked List

More Answers for Eastern Ontario County, Ontario