What is the water quality grade for Nla Lake?

Nla Lake in Marshall County, Kansas received a water quality grade of C (Fair). Water clarity: 0.9 ft visibility. Phosphorus: 99.5 µg/L. Chlorophyll-a (algae): 18.7 µg/L.

Is Nla Lake safe to swim in?

Swim with caution, moderate algae may be present. Nla Lake has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 18.7 µg/L. Always check local health department advisories before swimming.

Marshall County, Kansas

Nla Lake

Grade CFair · 0.9 ft clarity

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Eutrophic

Nla Lake is a productive, nutrient-rich eutrophic lake in Marshall County, Kansas. Water quality is graded C based on 2 sampling years through 2017.

Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2017-06-08. 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 0.9 ft of visibility. Phosphorus level: 99.5 µg/L. Chlorophyll-a: 18.7 µg/L. Trophic State Index: 69.

Metric	Value	Grade
Water Clarity (Secchi Depth)	0.9 ft	F
Phosphorus	99.5 µg/L	D
Chlorophyll-a (Algae)	18.7 µg/L	C
Trophic State Index (TSI)	69	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Nla Lake

Compare lakeside cabins, hotels, and vacation rentals near Nla Lake in Marshall County, Kansas — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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