Haskell County Lake Quality
Oklahoma, 4 lakes — no lake here has enough monitoring data for a grade
Haskell County holds 4 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. No lake in Haskell County has enough sampling behind it for an A–F grade yet. The 4 monitored lakes below carry whatever clarity, phosphorus, and chlorophyll-a measurements exist.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.
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Quick Answers for Haskell County
Planning a trip? Check special fishing regulations for John Wells Lake — or check the official Oklahoma fishing regulations.
All Lakes in Haskell County
4 lakes · 0 graded, 4 not rated0 graded lakes · 4 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRJohn Wells LakeHaskell | NR | 5.7 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRClub LakeHaskell | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRQuinton City LakeHaskell | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRFenton LakeHaskell | 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 Oklahoma
See how Haskell 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.