Question 1

Cleanest Lakes in Adair County, Iowa?

Accepted Answer

Mormon Trail Lake in Adair County leads the rankings on measured clarity and nutrients and 6.2 ft of clarity. Below are the top 5 cleanest monitored lakes in Adair County, Iowa, ranked on EPA nutrient and algae measurements.

Question 2

What is the cleanest lake in Adair County, Iowa?

Accepted Answer

Mormon Trail Lake in Adair County has the cleanest nutrient and algae readings in Adair County, Iowa, with 6.2 feet of measured water clarity.

Question 3

How are these rankings calculated?

Accepted Answer

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.

#	Lake	County	Clarity	Phosphorus	Algae
1	Mormon Trail Lake	Adair	6.2 ft	25 µg/L	9.7 µg/L
2	Nodaway Lake	Adair	2.8 ft	57 µg/L	27.6 µg/L
3	Greenfield Lake	Adair	2.1 ft	113 µg/L	53.8 µg/L
4	Meadow Lake	Adair	1.7 ft	99 µg/L	53.1 µg/L
5	Lake Orient	Adair	1.3 ft	674 µg/L	92.2 µg/L

Cleanest Lakes in Adair County, Iowa

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