Lake Crabtree is a productive, nutrient-rich eutrophic lake in Wake County, North Carolina. Water quality is graded F based on 2 sampling years through 2020. Compared to the 13 other monitored lakes in Wake County, Lake Crabtree ranks #14 for water quality.
Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2020-09-09. 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: 100 µg/L. Chlorophyll-a: 35.5 µg/L. Trophic State Index: 68.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 100 µg/L | F |
| Chlorophyll-a (Algae) | 35.5 µg/L | F |
| Trophic State Index (TSI) | 68 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lake Crabtree
Location
County Ranking
Ranked #14 of 14 lakes in Wake County
Cleaner Lakes Within 30 Miles
Lake Crabtree holds Grade F. 5 nearby lakes hold higher grades.
- CLake JohnsonWake County · 6.9 mi · Two grade letters higher (F → C)
- CLake RaleighWake County · 8.4 mi · Two grade letters higher (F → C)
- CFalls Lake Bayleaf ChurchWake County · 13.1 mi · Two grade letters higher (F → C)
- DApex ReservoirWake County · 6.1 mi · Higher grade (F → D)
- DLake WheelerWake County · 10.9 mi · Higher grade (F → D)
Nearby Lakes in Wake County
Explore Lake Crabtree 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 F 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: 2020-09-09
Monitoring stations: 3