What is the water quality grade for S Fork Catawba Riv Lake?

S Fork Catawba Riv Lake in Gaston County, North Carolina received a water quality grade of C (Fair). Water clarity: 3.9 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 13 µg/L.

Is S Fork Catawba Riv Lake safe to swim in?

Generally safe for swimming, moderate water quality. S Fork Catawba Riv Lake has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 13 µg/L. Always check local health department advisories before swimming.

Gaston County, North Carolina

S Fork Catawba Riv Lake

Grade CFair · 3.9 ft clarity

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Eutrophic

S Fork Catawba Riv Lake is a productive, nutrient-rich eutrophic lake in Gaston County, North Carolina. Water quality is graded C based on 3 sampling years through 2022. Compared to the 4 other monitored lakes in Gaston County, S Fork Catawba Riv Lake ranks #5 for water quality.

Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2022-12-19. Grade methodology: LakeGrade methodology.

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 3.9 ft. Phosphorus level: 40 µg/L. Chlorophyll-a: 13 µg/L. Trophic State Index: 57.

Metric	Value	Grade
Water Clarity (Secchi Depth)	3.9 ft	D
Phosphorus	40 µg/L	C
Chlorophyll-a (Algae)	13 µg/L	C
Trophic State Index (TSI)	57	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near S Fork Catawba Riv Lake

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