Lake Jack Nolan is a productive, nutrient-rich eutrophic lake in Sebastian County, Arkansas. Water quality is graded D based on 2 sampling years through 2023.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2023-02-21. 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: 35 µg/L. Chlorophyll-a: 31.8 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 35 µg/L | C |
| Chlorophyll-a (Algae) | 31.8 µg/L | F |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lake Jack Nolan
Location
County Ranking
Ranked #1 of 1 lakes in Sebastian County
Cleaner Lakes Within 30 Miles
Lake Jack Nolan holds Grade D. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Sebastian County
Explore Lake Jack Nolan 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: 2023-02-21
Monitoring stations: 1