Rye Patch Reservoir is a productive, nutrient-rich eutrophic lake in Pershing County, Nevada. Water quality is graded C based on 2 sampling years through 2025. Compared to the 3 other monitored lakes in Pershing County, Rye Patch Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Nevada DNR, last sampled 2025-06-24. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
No clarity data. Phosphorus level: 120 µg/L. Chlorophyll-a: 2.7 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 120 µg/L | F |
| Chlorophyll-a (Algae) | 2.7 µg/L | A |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Rye Patch Reservoir
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Fishing Rye Patch Reservoir
Location
County Ranking
Ranked #1 of 4 lakes in Pershing County
Nearby Lakes in Pershing County
Explore Rye Patch Reservoir across LakeGrade
More Nevada Lake Rankings
Other Grade C 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: 2025-06-24
Monitoring stations: 5