Lincoln Lake is a productive, nutrient-rich eutrophic lake in Washington County, Arkansas. Water quality is graded D based on 2 sampling years through 2025. Compared to the 10 other monitored lakes in Washington County, Lincoln Lake ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2025-12-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
No clarity data. Phosphorus level: 50 µg/L. Chlorophyll-a: 41.6 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 50 µg/L | C |
| Chlorophyll-a (Algae) | 41.6 µg/L | F |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lincoln Lake
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Fishing Lincoln Lake
Location
County Ranking
Ranked #8 of 11 lakes in Washington County
Cleaner Lakes Within 30 Miles
Lincoln Lake holds Grade D. 4 nearby lakes hold higher grades.
- BLake WeddingtonWashington County · 6.9 mi · Two grade letters higher (D → B)
- BLake WilsonWashington County · 15.7 mi · Two grade letters higher (D → B)
- CBobb Kidd LakeWashington County · 4 mi · Higher grade (D → C)
- CLake ElmdaleWashington County · 17.6 mi · Higher grade (D → C)
Nearby Lakes in Washington County
Explore Lincoln Lake across LakeGrade
More Arkansas Lake Rankings
Other Grade D Lakes in Arkansas
Eutrophic 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: 2025-12-08
Monitoring stations: 1