Richardson County Lake Quality
Nebraska, 2 lakes, average grade D (Nutrient-rich)
Richardson County holds 2 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. On average, Richardson County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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 Kirkman'S Cove Lake (D); the most-stressed is Kirkman'S Cove Lake (D).
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Quick Answers for Richardson County
Planning a trip? Check special fishing regulations for Kirkman'S Cove Lake — or check the official Nebraska fishing regulations.
All Lakes in Richardson County
2 lakes · 1 graded, 1 not rated1 graded lake · 1 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | DKirkman'S Cove LakeRichardson | D | 1.4 ft | 132 µg/L | 20.5 µg/L | No recent samples | ✓ Public |
| NRVerdon LakeRichardson | 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 Nebraska
See how Richardson 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.