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LakeQuality
A storm cloud deck moving over Slim Lake at dusk, the last light breaking through low on the horizon

Eutrophic Lakes in Arkansas

29 eutrophic lakes in Arkansas. High nutrients, frequent algae, reduced clarity.

Eutrophic lakes — TSI 50 to 70 — are nutrient-rich and productive, with persistent summer algal communities that drive visible reductions in clarity. These conditions are not failures; they reflect a lake doing what nutrient-loaded waters do. 29 Arkansas lakes register as eutrophic. Only 0% are deep — eutrophy correlates with shallowness, agricultural watersheds, and the kind of nutrient-input history that takes decades to shift.

Eutrophic lakes typically grade C or D on our A–F scale. The same nutrient richness that defines the trophic class drives the lower grade.

#LakeCountyGradeClarityDepthTSI
1Lake Georgia-PacificAshleyB--54
2Beaver LakeBentonC4.6 ft-52
3Lake HamiltonGarlandC11.9 ft-46
4Degray LakeClarkC9.5 ft-48
5Driver Creek LakeVan BurenC--54
6Lake AustelleCrossC--56
7Lake GrampusAshleyC--60
8Upper White Oak LakeOuachitaC--60
9Lake FriersonGreeneC--60
10Des Arc LakePrairieC--60
11Lake ColumbiaColumbiaC--53
12Lower White Oak LakeOuachitaC--63
13Cane Creek LakeLincolnC--55
14Lake PoinsettPoinsettC--59
15Nimrod LakeYellD2.3 ft-63
16Lake GreesonPikeD5.1 ft-53
17Dierks LakeHowardD4.4 ft-58
18Gillham LakeHowardD5.1 ft-55
19Lake MillwoodLittle RiverD1 ft-70
20Lake Dequeen Upstream of Highway BridgeSevierD3.5 ft-60
21Lake ElmdaleWashingtonD--59
22Bobb Kidd LakeWashingtonD--60
23Lake WilsonWashingtonD--49
24Horsehead LakeJohnsonD--55
25Lee Creek LakeCrawfordD--53
26Beaverfork LakeFaulknerD--56
27Pickthorne Lake Along Eastern Most Levee.LonokeD--62
28Bragg LakeOuachitaD--68
29Barnett LakeWhiteD--54
All eutrophic 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 →Georgia version →Massachusetts version →Ontario version →Québec version →Nova Scotia version →British Columbia version →Newfoundland and Labrador version →All Arkansas lakes →

Source: EPA National Aquatic Resource Surveys, 2026.