What is the water quality grade for Lake Mansfield?

Lake Mansfield in Lamoille County, Vermont received a water quality grade of B (Good). Water clarity: 6.9 ft visibility. Phosphorus: 12.1 µg/L. Chlorophyll-a (algae): 3.1 µg/L.

Is Lake Mansfield safe to swim in?

Good for swimming, clear water with low algae levels. Lake Mansfield has an overall water quality grade of B. Algae concentration (chlorophyll-a) is 3.1 µg/L. Always check local health department advisories before swimming.

Lamoille County, Vermont

Lake Mansfield

Grade BGood · 6.9 ft clarity

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Mesotrophic

Lake Mansfield is a mesotrophic lake in Lamoille County, Vermont. Water quality is graded B based on 3 sampling years through 2024. Compared to the 9 other monitored lakes in Lamoille County, Lake Mansfield ranks #6 for water quality.

Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2024-06-12. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 6.9 ft. Phosphorus level: 12.1 µg/L. Chlorophyll-a: 3.1 µg/L. Trophic State Index: 44.

Metric	Value	Grade
Water Clarity (Secchi Depth)	6.9 ft	C
Phosphorus	12.1 µg/L	A
Chlorophyll-a (Algae)	3.1 µg/L	A
Trophic State Index (TSI)	44	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Lake Mansfield

Compare lakeside cabins, hotels, and vacation rentals near Lake Mansfield in Lamoille County, Vermont — 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.

Top-rated places to stay near Lake Mansfield