What is the cleanest lake in Seneca County, New York?

Gem Lake in Seneca County has the cleanest nutrient and algae readings in Seneca County, New York.

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 separately. Lakes without enough recent samples are listed without a condition class rather than ranked low. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Seneca County, New York

Gem Lake in Seneca County leads the rankings on measured clarity and nutrients. Below are the top 3 cleanest monitored lakes in Seneca County, New York, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Gem Lake	Seneca	-	-	-
2	Black Lake	Seneca	-	-	-
3	Van Cleef Lake	Seneca	-	-	-

Ranked List

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