Lake Ben Johnson is a productive, nutrient-rich eutrophic lake in Orange County, North Carolina. Water quality is graded B based on 2 sampling years through 2020. Compared to the 6 other monitored lakes in Orange County, Lake Ben Johnson ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2020-09-14. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
No clarity data. Phosphorus level: 40 µg/L. Chlorophyll-a: 6.5 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 40 µg/L | C |
| Chlorophyll-a (Algae) | 6.5 µg/L | B |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lake Ben Johnson
Location
County Ranking
Ranked #1 of 7 lakes in Orange County
Nearby Lakes in Orange County
Explore Lake Ben Johnson across LakeGrade
More North Carolina Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Grade B Lakes in North Carolina
Eutrophic Lakes in North Carolina
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: 2020-09-14
Monitoring stations: 1