Lake Wilson is a highly nutrient-loaded hypereutrophic lake in Ashley County, Arkansas. Water quality is graded F based on 2 sampling years through 2025. Compared to the 3 other monitored lakes in Ashley County, Lake Wilson ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2025-08-26. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Phosphorus level: 200 µg/L. Chlorophyll-a: 47.9 µg/L. Trophic State Index: 75.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 200 µg/L | F |
| Chlorophyll-a (Algae) | 47.9 µg/L | F |
| Trophic State Index (TSI) | 75 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Lake Wilson
Location
County Ranking
Ranked #4 of 4 lakes in Ashley County
Cleaner Lakes Within 30 Miles
Lake Wilson holds Grade F. 2 nearby lakes hold higher grades.
- CLake Georgia-PacificAshley County · 29.9 mi · Two grade letters higher (F → C)
- CLake GrampusAshley County · 6.7 mi · Two grade letters higher (F → C)
Nearby Lakes in Ashley County
Explore Lake Wilson across LakeGrade
More Arkansas Lake Rankings
Other Grade F Lakes in Arkansas
Hypereutrophic Lakes in Arkansas
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: 2025-08-26
Monitoring stations: 1