What is the cleanest lake in Twin Falls County, Idaho?

Deep Creek Reservoir in Twin Falls County has the cleanest nutrient and algae readings in Twin Falls County, Idaho.

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 Twin Falls County, Idaho

Deep Creek Reservoir in Twin Falls County leads the rankings on measured clarity and nutrients. Below are the top 6 cleanest monitored lakes in Twin Falls County, Idaho, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Deep Creek Reservoir	Twin Falls	-	-	-
2	Salmon Falls Creek Reservoir	Twin Falls	-	-	-
3	Dierkes Lake	Twin Falls	-	-	-
4	Murtaugh Lake	Twin Falls	-	-	-
5	Milner Lake	Twin Falls	-	-	-
6	Williams Reservoir	Twin Falls	-	-	-

Ranked List

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