What are mesotrophic lakes in Utah?

40 mesotrophic lakes in Utah. Moderate nutrients, good water quality.

What does mesotrophic mean?

Moderate nutrients, good water quality.

Mesotrophic Lakes in Utah

Mesotrophic lakes are the productive middle of the trophic scale — TSI between 40 and 50. Clear enough to be inviting, productive enough to support a strong fishery, with moderate phosphorus and a modest algal community that does not dominate the optical signal. 40 lakes in Utah sit in the mesotrophic band. About 0% are deep (50+ ft); the rest are shallower basins where watershed management keeps nutrients from pushing the system into eutrophy.

Mesotrophic lakes sit in the middle of the phosphorus and chlorophyll-a range: productive but still clear, with readings that rarely reach the EPA's poorest condition class.

#	Lake	County	Clarity	Depth	TSI
1	Wide Hollow Reservoir	Garfield	13.8 ft	-	46
2	Salem Pond	Utah	5.9 ft	-	47
3	Grantsville Reservoir	Tooele	5.9 ft	-	47
4	Gunlock Reservoir	Washington	4.6 ft	-	48
5	Dmad Reservoir N of Cut	Millard	0.7 ft	-	62
6	Gunnison Bend Reservoir	Millard	1.5 ft	-	57
7	Hyrum Reservoir	Cache	6.9 ft	-	44
8	Big Sand Wash Reservoir	Duchesne	10.7 ft	-	41
9	Brough Reservoir	Uintah	6.2 ft	-	46
10	Moon Lake	Duchesne	9.5 ft	-	41
11	Red Creek Reservoir	Duchesne	14.4 ft	-	44
12	Nine Mile Reservoir	Sanpete	9.3 ft	-	42
13	Steinaker Reservoir	Uintah	8.9 ft	-	45
14	Lake Powell Halls Xing	Kane	12.3 ft	-	42
15	Paradise Park Reservoir	Uintah	7.9 ft	-	42
16	Tibble Fork Reservoir	Utah	5.2 ft	-	49
17	Strawberry Lake	Wasatch	20 ft	-	39
18	Calder Reservoir	Uintah	8.9 ft	-	58
19	Mona Reservoir	Juab	2 ft	-	58
20	Upper Enterprise Reservoir	Washington	5.2 ft	-	52
21	East Canyon Reservoir	Morgan	13.8 ft	-	42
22	Lower Gooseberry Reservoir	Sanpete	7.4 ft	-	49
23	Navajo Lake	Kane	9.5 ft	-	41
24	Strawberry Reservoir Strawberry Bay T	Wasatch	16.4 ft	-	42
25	Minersville Reservoir	Beaver	2.6 ft	-	60
26	Porcupine Reservoir	Cache	8.5 ft	-	44
27	Smith And Morehouse Reservoir	Summit	7.5 ft	-	42
28	Oaks Park Reservoir	Uintah	3.3 ft	-	49
29	Upper Stillwater Reservoir	Duchesne	8.7 ft	-	42
30	Joes Valley Reservoir	Emery	11.2 ft	-	38
31	Sheep Creek Lake	Daggett	10.3 ft	-	44
32	Cleveland Lake	Emery	17.4 ft	-	38
33	Kolob Reservoir	Washington	10.5 ft	-	41
34	Dark Canyon Lake	San Juan	7.2 ft	-	47
35	Three Creeks Reservoir	Beaver	6.6 ft	-	49
36	Electric Lake	Emery	10.8 ft	-	41
37	Strawberry Reservoir Indian Creek Bay T	Wasatch	16.4 ft	-	45
38	Browne Lake	Daggett	6.6 ft	-	51
39	Miller Flat Reservoir	Emery	10.2 ft	-	44
40	Anderson Meadow Reservoir	Beaver	10.2 ft	-	49

All mesotrophic 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 →Arkansas 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 →Washington version →Wyoming version →Georgia version →Massachusetts version →Ontario version →Québec version →Nova Scotia version →British Columbia version →Newfoundland and Labrador version →All Utah lakes →

Source: EPA National Aquatic Resource Surveys, 2026.