What is the water quality grade for Lake Fairlee?

Lake Fairlee in Orange County, Vermont received a water quality grade of A (Excellent). Water clarity: 21.7 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 2.8 µg/L.

Is Lake Fairlee safe to swim in?

Excellent for swimming, crystal clear water with minimal algae. Lake Fairlee has an overall water quality grade of A. Algae concentration (chlorophyll-a) is 2.8 µg/L. Always check local health department advisories before swimming.

Orange County, Vermont

Lake Fairlee

Grade AExcellent · 21.7 ft clarity

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Oligotrophic

Lake Fairlee is a cold, clear oligotrophic lake in Orange County, Vermont. Water quality is graded A based on 3 sampling years through 2025. Compared to the 8 other monitored lakes in Orange County, Lake Fairlee ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-08-24. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

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Water Quality Grade: A, Excellent

Crystal clear, you can see 21.7 ft down. Phosphorus level: 14.5 µg/L. Chlorophyll-a: 2.8 µg/L. Trophic State Index: 39.

Metric	Value	Grade
Water Clarity (Secchi Depth)	21.7 ft	A
Phosphorus	14.5 µg/L	A
Chlorophyll-a (Algae)	2.8 µg/L	A
Trophic State Index (TSI)	39	Oligotrophic

Low nutrients, clear water, excellent for swimming

Where to stay near Lake Fairlee

Compare lakeside cabins, hotels, and vacation rentals near Lake Fairlee in Orange 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 Fairlee