What is the cleanest lake in Sullivan County, Indiana?

Old Channel Lake in Sullivan County has the cleanest nutrient and algae readings in Sullivan County, Indiana.

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 Sullivan County, Indiana

Old Channel Lake in Sullivan County leads the rankings on measured clarity and nutrients. Below are the top 7 cleanest monitored lakes in Sullivan County, Indiana, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Old Channel Lake	Sullivan	-	-	-
2	Turtle Creek Lake	Sullivan	-	-	-
3	Motorboat Lake	Sullivan	-	-	-
4	Lake Sullivan	Sullivan	-	-	-
5	Thunderbird Pond	Sullivan	-	-	-
6	Lake Shakamak	Sullivan	-	-	-
7	Lake Kickapoo	Sullivan	-	-	-

Ranked List

More Answers for Sullivan County, Indiana