Hypereutrophic Lakes in Texas

27 hypereutrophic lakes in Texas. 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. 27 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	Falcon Reservoir	Zapata	D	0.7 ft	-	73
2	Cox Lake	Calhoun	D	0.7 ft	-	76
3	Lake Houston S Union Pacific Rr Bridge	Harris	D	1.3 ft	-	73
4	Lake Houston	Harris	D	1.6 ft	-	72
5	Lake Houston	Harris	D	0.6 ft	-	83
6	Phelps Lake	Rockwall	D	0.6 ft	-	75
7	Lake Whitney Nolands River Arm	Hill	D	1.3 ft	-	70
8	Red Bluff Reserv Lake	Loving	D	0.8 ft	-	73
9	Somerville Lake	Washington	D	1.9 ft	-	70
10	Lavon Lake	Collin	F	1.4 ft	-	71
11	Livingston Reservoir	Polk	F	1.6 ft	-	73
12	Victor Braunig Lake	Bexar	F	1.5 ft	-	82
13	Lake Wichita	Wichita	F	0.5 ft	-	81
14	Lake Kirby	Taylor	F	0.7 ft	-	78
15	Wright Patman Lake	Bowie	F	1.3 ft	-	71
16	Springfield Lake	Limestone	F	1 ft	-	81
17	L Houston W of Lake Shadows	Harris	F	1.5 ft	-	73
18	Buffalo Springs Lake	Lubbock	F	2.4 ft	-	70
19	New Marlin City Lake	Falls	F	1.5 ft	-	72
20	Lake Mexia	Limestone	F	1.1 ft	-	74
21	Palo Duro Reservoir	Hansford	F	0.7 ft	-	83
22	Lake Fryer	Ochiltree	F	0.7 ft	-	90
23	Lake Tanglewood	Randall	F	2.3 ft	-	82
24	Lake Somerville Mid Lake	Burleson	F	1.8 ft	-	71
25	Somerville Lake Upper Portion	Washington	F	0.9 ft	-	77
26	Rita Blanca Lake	Hartley	F	-	-	98
27	Old Rv Lake	Chambers	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 →All Texas lakes →

Source: EPA National Aquatic Resource Surveys, 2026.