Hypereutrophic Lakes in Arkansas

22 hypereutrophic lakes in Arkansas. Very high nutrients, dense algae, poor clarity.

Hypereutrophic lakes (TSI above 70) are at the upper end of the productivity scale: visible algal blooms most weeks of summer, clarity often under 3 feet, and meaningful risk of harmful-algal-bloom toxin events. 22 hypereutrophic lakes are on the {{stateName}} books. Almost none of them are deep — 0% break 50 feet. Shallow basin plus heavy nutrient input is the consistent recipe.

Hypereutrophic lakes overwhelmingly grade D or F — the trophic class and the grade are measuring closely-related dimensions of the same underlying nutrient regime.

#	Lake	County	Grade	Clarity	Depth	TSI
1	Nla Lake	Johnson	D	6 ft	-	84
2	Nla Lake	Sevier	D	5.4 ft	-	88
3	Horseshoe Lake	Crittenden	D	-	-	70
4	Lake Millwood	Little River	F	1 ft	-	70
5	Lake Beulah	Desha	F	1 ft	-	79
6	Nla Lake	Poinsett	F	1 ft	-	109
7	Nla Lake	Lawrence	F	1.6 ft	-	106
8	Nla Lake	Little River	F	1.2 ft	-	78
9	Nla Lake	Randolph	F	0.9 ft	-	75
10	Lake Lee	Chicot	F	1.2 ft	-	75
11	Tunica Cutoff Lake	Lee	F	1.6 ft	-	72
12	Cox Creek Lake	Grant	F	1 ft	-	77
13	Lake Wilson	Ashley	F	-	-	75
14	Lower Lake Chicot	Chicot	F	-	-	74
15	Lower Lake Chicot	Chicot	F	-	-	78
16	Lake Conway	Faulkner	F	-	-	71
17	Bois D Arc Lake	Hempstead	F	-	-	80
18	Lake June	Lafayette	F	-	-	77
19	Lake Hogue	Poinsett	F	-	-	79
20	Grand Lake	Chicot	F	-	-	82
21	Lake Pine Bluff Diagonally From North And East Levees	Jefferson	F	-	-	75
22	Lake Wallace	Chicot	F	-	-	75

All hypereutrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Kentucky version →Utah version →Washington version →Wyoming version →All Arkansas lakes →

Source: EPA National Aquatic Resource Surveys, 2026.