Lahontan Reservoir is a productive, nutrient-rich eutrophic lake in Lyon County, Nevada. Water quality is graded D based on 2 sampling years through 2024. Compared to the 3 other monitored lakes in Lyon County, Lahontan Reservoir ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Nevada DNR, last sampled 2024-02-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
No clarity data. Phosphorus level: 290 µg/L. Chlorophyll-a: 8.9 µg/L. Trophic State Index: 69.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 290 µg/L | F |
| Chlorophyll-a (Algae) | 8.9 µg/L | C |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lahontan Reservoir
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Top-rated places to stay near Lahontan Reservoir
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Fishing Lahontan Reservoir
Location
County Ranking
Ranked #4 of 4 lakes in Lyon County
Cleaner Lakes Within 30 Miles
Lahontan Reservoir holds Grade D. 5 nearby lakes hold higher grades.
- CLahontan Reservoir Narrows OutletChurchill County · 3.6 mi · Higher grade (D → C)
- CLahontan ReservoirChurchill County · 5.2 mi · Higher grade (D → C)
- CLahontan Reservoir East of Silver Springs BeachLyon County · 2.3 mi · Higher grade (D → C)
- CLahontan ReservoirChurchill County · 6.5 mi · Higher grade (D → C)
- CNla LakeChurchill County · 24.4 mi · Higher grade (D → C)
Nearby Lakes in Lyon County
Explore Lahontan Reservoir across LakeGrade
More Nevada Lake Rankings
Other Grade D Lakes in Nevada
Eutrophic Lakes in Nevada
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-02-21
Monitoring stations: 3