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LakeQuality

Hypereutrophic Lakes in Missouri

50 hypereutrophic lakes in Missouri. 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. 50 hypereutrophic lakes are on the Missouri 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.

#LakeCountyGradeClarityDepthTSI
1Valley LakeJacksonD--71
2Harrison County LakeHarrisonF1.5 ft-72
3Pomme de Terre LakeHickoryF1.2 ft-76
4Mckay Park LakeColeF1 ft-75
5Edwin A Pape LakeLafayetteF1.8 ft-71
6Harrisonville LakeCassF1.1 ft-71
7North LakeCassF1.6 ft-73
8Drexel City Reservoir South Nr. DamBatesF0.9 ft-80
9Jackrabbit LakeJacksonF1.5 ft-72
10Koeneman Park LakeSt. LouisF3.1 ft-70
11Hemitite LakeSt. FrancoisF1.1 ft-77
12Lamar City Lk. Nr. Upper End LakeBartonF1.8 ft-70
13Nell LakeJacksonF1.3 ft-73
14Unionville LakePutnamF1.6 ft-72
15Lake LunaCassF1.2 ft-77
16Spring Fork LakePettisF1.4 ft-73
17Spanish LakeSt. LouisF1.6 ft-77
18Chaumiere LakeClayF1.4 ft-74
19Izaak Walton LakeVernonF1.5 ft-78
20King LakeDeKalbF0.6 ft-77
21Teal LakeAudrainF2 ft-71
22Creve Coeur Lake Nr. Boat RampSt. LouisF1.2 ft-73
23Montrose LakeHenryF0.6 ft-80
24Sterling Price LakeCharitonF1.5 ft-73
25Crowder S.P. LakeGrundyF1 ft-77
26Knox Village LakeJacksonF2.2 ft-76
27Cameron Lake Nr. DamDeKalbF1.6 ft-71
28Houston LakePlatteF1.1 ft-73
29Shelbyville LakeShelbyF1 ft-80
30Mozingo LakeNodawayF--73
31Pomme de Terre LakeHickoryF1 ft-80
32Jamesport Community LakeDaviessF0.9 ft-78
33Gopher LakeJacksonF1.2 ft-73
34Bee Tree LakeSt. LouisF0.6 ft-85
35Mckee Prairie PondJacksonF1.3 ft-73
36Lake WooldridgeSalineF--89
37Lewis LakeStoddardF--75
38Railraod LakeMoniteauF--73
39Troost LakeJacksonF--73
40Big LakeHoltF--99
41Tilles Park ReservoirSt. LouisF--82
42Troost LakeJacksonF--76
43Firehouse Park LakeJacksonF--80
44Chaumiere Park LakeClayF--75
45Kessler LakeJacksonF--77
46Blue River Parkway LakeJacksonF--77
47Catclaw LakeJacksonF--78
48Limpp LakeGentryF--81
49Perry City LakeRallsF--83
50Loose Park LakeJacksonF--80

Source: EPA National Aquatic Resource Surveys, 2026.