What is the water quality grade for Swift Creek Reservoir?

Swift Creek Reservoir in Chesterfield County, Virginia received a water quality grade of C (Fair). Water clarity: 3 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 13.7 µg/L.

Is Swift Creek Reservoir safe to swim in?

Generally safe for swimming, moderate water quality. Swift Creek Reservoir has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 13.7 µg/L. Always check local health department advisories before swimming.

Chesterfield County, Virginia

Swift Creek Reservoir

Grade CFair · 3 ft clarity

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Eutrophic

Swift Creek Reservoir is a productive, nutrient-rich eutrophic lake in Chesterfield County, Virginia. Water quality is graded C based on 2 sampling years through 2026. Compared to the 8 other monitored lakes in Chesterfield County, Swift Creek Reservoir ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, Virginia DNR, last sampled 2026-06-25. Grade methodology: LakeGrade methodology.

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Very murky, less than 3 ft of visibility. Phosphorus level: 30 µg/L. Chlorophyll-a: 13.7 µg/L. Trophic State Index: 57.

Metric	Value	Grade
Water Clarity (Secchi Depth)	3 ft	F
Phosphorus	30 µg/L	C
Chlorophyll-a (Algae)	13.7 µg/L	C
Trophic State Index (TSI)	57	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Swift Creek Reservoir

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