Brunswick County Lake is a productive, nutrient-rich eutrophic lake in Brunswick County, Virginia. Water quality is graded C based on 2 sampling years through 2026. Compared to the 3 other monitored lakes in Brunswick County, Brunswick County Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Virginia DNR, last sampled 2026-06-30. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Very murky, less than 2.3 ft of visibility. Phosphorus level: 50 µg/L. Chlorophyll-a: 28.6 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | F |
| Phosphorus | 50 µg/L | C |
| Chlorophyll-a (Algae) | 28.6 µg/L | D |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Brunswick County Lake
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Fishing Brunswick County Lake
Location
County Ranking
Ranked #3 of 4 lakes in Brunswick County
Cleaner Lakes Within 30 Miles
Brunswick County Lake holds Grade C. 3 nearby lakes hold higher grades.
- BLake GastonMecklenburg County · 26.4 mi · Higher grade (C → B)
- BNla LakeNottoway County · 20.2 mi · Higher grade (C → B)
- CGreat Creek ReservoirBrunswick County · 9 mi · Higher overall water quality score
Nearby Lakes in Brunswick County
Explore Brunswick County Lake across LakeGrade
More Virginia Lake Rankings
Other Grade C Lakes in Virginia
Eutrophic Lakes in Virginia
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: 2026-06-30
Monitoring stations: 1