Hypereutrophic Lakes in Nevada

32 hypereutrophic lakes in Nevada. 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. 32 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	Lincoln	C	4 ft	-	87
2	Nla Lake	Washoe	C	10.7 ft	-	77
3	Nla Lake	Douglas	C	7.3 ft	-	77
4	Nla Lake	Elko	C	-	-	105
5	Bilk Creek Reservoir	Humboldt	C	-	-	77
6	Wall Canyon Reservoir	Washoe	C	-	-	73
7	Catnip Reservoir	Washoe	C	-	-	71
8	Nla Lake	Humboldt	C	10.8 ft	-	85
9	Nla Lake	Churchill	C	1.4 ft	-	99
10	Nla Lake	Humboldt	C	0.7 ft	-	108
11	Nla Lake	Elko	C	9.4 ft	-	88
12	Nla Lake	Pershing	C	2.3 ft	-	91
13	Nla Lake	Washoe	C	-	-	111
14	Chimney Reservoir West Lobe	Humboldt	C	-	-	70
15	Nla Lake	Humboldt	D	4.6 ft	-	93
16	Nla Lake	Washoe	D	1 ft	-	104
17	Nla Lake	Elko	D	7.2 ft	-	87
18	Lahontan Reservoir Fishermans Point	Lyon	D	-	-	71
19	Willow Creek Reservoir West	Elko	D	-	-	74
20	Chimney Reservoir West Lobe North	Humboldt	D	-	-	74
21	Chimney Reservoir East Lobe	Humboldt	D	-	-	77
22	Knott Creek Reservoir	Humboldt	D	-	-	70
23	Sheep Creek Middle Reservoir	Elko	F	3 ft	-	70
24	Soda Lake Edge Sample Away From Tufa	Churchill	F	-	-	126
25	Hidden Valley Tinaja Lake	Clark	F	-	-	86
26	Willow Creek Reservoir East	Elko	F	-	-	103
27	Steamboat Creek Lake	Washoe	F	-	-	84
28	Little Washoe Outfall Lake	Washoe	F	-	-	101
29	Wildhorse Res Inlet Lake	Elko	F	-	-	74
30	Warrior Point Lake	Washoe	F	-	-	94
31	Popcorn Rock Beach Lake	Washoe	F	-	-	94
32	Blockhouse Lake	Washoe	F	-	-	94

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 →Arkansas version →Oklahoma version →Kansas version →Nebraska 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 Nevada lakes →

Source: EPA National Aquatic Resource Surveys, 2026.