What is the water quality grade for Marais des Cygnes Wildlife Area Lake?

Marais des Cygnes Wildlife Area Lake in Linn County, Kansas received a water quality grade of C (Fair). Water clarity: 0.5 ft visibility. Phosphorus: 2.3 µg/L. Chlorophyll-a (algae): 602.2 µg/L.

Is Marais des Cygnes Wildlife Area Lake safe to swim in?

Swim with caution, moderate algae may be present. Marais des Cygnes Wildlife Area Lake has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 602.2 µg/L. Always check local health department advisories before swimming.

Linn County, Kansas

Marais des Cygnes Wildlife Area Lake

Grade CFair · 0.5 ft clarity

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Eutrophic

Marais des Cygnes Wildlife Area Lake is a productive, nutrient-rich eutrophic lake in Linn County, Kansas. Water quality is graded C based on 2 sampling years through 2018. Compared to the 9 other monitored lakes in Linn County, Marais des Cygnes Wildlife Area Lake ranks #6 for water quality.

Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2018-07-24. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swim with caution, moderate algae may be present

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Water Quality Grade: C, Fair

Very murky, less than 0.5 ft of visibility. Phosphorus level: 2.3 µg/L. Chlorophyll-a: 602.2 µg/L. Trophic State Index: 66.

Metric	Value	Grade
Water Clarity (Secchi Depth)	0.5 ft	F
Phosphorus	2.3 µg/L	A
Chlorophyll-a (Algae)	602.2 µg/L	F
Trophic State Index (TSI)	66	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Marais des Cygnes Wildlife Area Lake

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