Pershing County Lake Quality
Nevada, 5 lakes, average grade C (Fair)
Pershing County holds 5 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 1 of those lake carry an A–F grade. The county-level summary describes that subset, not every water body listed. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Rye Patch Reservoir (C); the most-stressed is Rye Patch Reservoir (C).
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Quick Answers for Pershing County
Planning a trip? Check special fishing regulations for Rye Patch Reservoir — or check the official Nevada fishing regulations.
All Lakes in Pershing County
5 lakes · 1 graded, 4 not rated1 graded lake · 4 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | CRye Patch ReservoirPershing | C | No recent samples | 120 µg/L | 2.7 µg/L | No recent samples | ✓ Public |
| NRLower Pitt-Taylor ReservoirPershing | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRUpper Pitt-Taylor ReservoirPershing | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRToulon LakePershing | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBig Five ReservoirPershing | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
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Other Counties in Nevada
See how Pershing County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.