What is the cleanest lake in Arkansas?

Beaver Lake in Carroll County has the cleanest nutrient and algae readings in Arkansas, with 20.3 feet of measured water clarity.

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 Arkansas

Beaver Lake in Carroll County leads the rankings on measured clarity and nutrients and 20.3 ft of clarity. Below are the top 16 cleanest monitored lakes in Arkansas, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Beaver Lake	Carroll	20.3 ft	5 µg/L	1.2 µg/L
2	Lake Winona	Saline	7.2 ft	11 µg/L	2.1 µg/L
3	Beaver Lake	Benton	4.6 ft	23 µg/L	9.1 µg/L
4	Crown Lake	Izard	-	20 µg/L	2.3 µg/L
5	Driver Creek Lake	Van Buren	-	27 µg/L	13 µg/L
6	Lake Leatherwood	Carroll	-	26 µg/L	2.9 µg/L
7	Bobb Kidd Lake	Washington	-	42.5 µg/L	22.8 µg/L
8	Lake Wilson	Washington	-	20 µg/L	7.4 µg/L
9	Horsehead Lake	Johnson	-	30 µg/L	13.5 µg/L
10	Lee Creek Lake	Crawford	-	29.5 µg/L	10 µg/L
11	Lake Beulah	Desha	1 ft	300 µg/L	69.4 µg/L
12	Desoto Lake	Phillips	1.6 ft	75 µg/L	44.1 µg/L
13	Tunica Cutoff Lake	Lee	1.6 ft	150 µg/L	56.2 µg/L
14	Lake Charles	Lawrence	-	69.5 µg/L	40.9 µg/L
15	Lake Erling	Lafayette	-	50 µg/L	49.2 µg/L
16	Bois D Arc Lake	Hempstead	-	200 µg/L	137 µg/L

Ranked List

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