What is the cleanest lake in Essex County, Vermont?

Maidstone Lake in Essex County is the highest-rated lake in Essex County, Vermont with an EPA water quality grade of A and 28.5 feet of water clarity.

How are these rankings calculated?

Lakes are graded A through F on nutrients and algae — total phosphorus, nitrogen, chlorophyll-a, and turbidity — 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 Essex County, Vermont

Maidstone Lake in Essex County leads the rankings with a water quality grade of A and 28.5 ft of clarity. Below are the top 9 cleanest monitored lakes in Essex County, Vermont, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Maidstone Lake	Essex	A	28.5 ft	7.2 µg/L	1.5 µg/L
2	Little Averill Pond	Essex	A	19.4 ft	6.6 µg/L	1.6 µg/L
3	Shadow Lake	Essex	A	16.4 ft	7.3 µg/L	1.5 µg/L
4	Miles Pond	Essex	A	13.1 ft	10.6 µg/L	2.5 µg/L
5	Great Averill Pond	Essex	A	14.3 ft	6.7 µg/L	1.8 µg/L
6	Norton Pond	Essex	A	7.9 ft	11.3 µg/L	2.4 µg/L
7	Spectacle Pond	Essex	NR	-	-	-
8	McConnell Pond	Essex	NR	-	-	-
9	Wheeler Pond	Essex	NR	-	-	-

Ranked List

More Answers for Essex County, Vermont