Apex Reservoir is a productive, nutrient-rich eutrophic lake in Wake County, North Carolina. Water quality is graded D based on 2 sampling years through 2020. Compared to the 13 other monitored lakes in Wake County, Apex Reservoir ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2020-09-24. 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: 45 µg/L. Chlorophyll-a: 32 µg/L. Trophic State Index: 62.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 45 µg/L | C |
| Chlorophyll-a (Algae) | 32 µg/L | F |
| Trophic State Index (TSI) | 62 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Apex Reservoir
Location
County Ranking
Ranked #8 of 14 lakes in Wake County
Cleaner Lakes Within 30 Miles
Apex Reservoir holds Grade D. 3 nearby lakes hold higher grades.
- CLake JohnsonWake County · 5.7 mi · Higher grade (D → C)
- CBass LakeWake County · 7.5 mi · Higher grade (D → C)
- CLake RaleighWake County · 7.8 mi · Higher grade (D → C)
Nearby Lakes in Wake County
Explore Apex Reservoir 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 D 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: 2020-09-24
Monitoring stations: 1