Great Creek Reservoir 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, Great Creek Reservoir ranks #1 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 3.1 ft of visibility. Phosphorus level: 30 µg/L. Chlorophyll-a: 15.5 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.1 ft | D |
| Phosphorus | 30 µg/L | C |
| Chlorophyll-a (Algae) | 15.5 µg/L | C |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Great Creek Reservoir
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Fishing Great Creek Reservoir
Location
County Ranking
Ranked #1 of 4 lakes in Brunswick County
Cleaner Lakes Within 30 Miles
Great Creek Reservoir holds Grade C. 2 nearby lakes hold higher grades.
- BLake GastonMecklenburg County · 19.4 mi · Higher grade (C → B)
- BNla LakeNottoway County · 18 mi · Higher grade (C → B)
Nearby Lakes in Brunswick County
Explore Great Creek Reservoir 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