What is the water quality grade for Lake Isaac Walton?

Lake Isaac Walton in Person County, North Carolina received a water quality grade of D (Poor). Water clarity: 3.4 ft visibility. Phosphorus: 45 µg/L. Chlorophyll-a (algae): 26 µg/L.

Is Lake Isaac Walton safe to swim in?

Swimming not recommended, poor water quality with high algae risk. Lake Isaac Walton has an overall water quality grade of D. Algae concentration (chlorophyll-a) is 26 µg/L. Always check local health department advisories before swimming.

Person County, North Carolina

Lake Isaac Walton

Grade DPoor · 3.4 ft clarity

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Eutrophic

Lake Isaac Walton is a productive, nutrient-rich eutrophic lake in Person County, North Carolina. Water quality is graded D based on 3 sampling years through 2024. Compared to the 2 other monitored lakes in Person County, Lake Isaac Walton ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2024-10-23. 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

Murky, only visible to about 3.4 ft. Phosphorus level: 45 µg/L. Chlorophyll-a: 26 µg/L. Trophic State Index: 60.

Metric	Value	Grade
Water Clarity (Secchi Depth)	3.4 ft	D
Phosphorus	45 µg/L	C
Chlorophyll-a (Algae)	26 µg/L	D
Trophic State Index (TSI)	60	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Lake Isaac Walton

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