Sylvan Lake
Dutchess County, New York119 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Oxygen depletion (low DO)
- 133 ft max depth
Sylvan Lake in Dutchess County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 133 ft. Surface area: 119 acres.
Sylvan Lake is a 119-acre lake in Dutchess County, New York with a maximum depth of 133 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Sylvan Lake is good for
From access and monitoring records, not editorial picks.
- Deep water133 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Sylvan Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Whether Sylvan Lake is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Sylvan Lake
These are the measurements NY DEC publishes for Sylvan Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Sylvan Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
133 ft
Surface area
119 acres
Shoreline
1.8 mi
Stays via Stay22
Stays near Sylvan Lake
Compare lakeside cabins, hotels, and vacation rentals near Sylvan Lake in Dutchess County, New York — 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 Sylvan Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at New York’s top lakes →
Follow Sylvan Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Sylvan Lake
EPA Impairment Status
Sylvan Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit NY1304-0029 · Official waterbody report
Nearby Lakes in Dutchess County
Frequently asked questions about Sylvan Lake
Where is Sylvan Lake?
- Sylvan Lake is a lake in Dutchess County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Sylvan Lake?
- Sylvan Lake in Dutchess County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 133 ft. Surface area: 119 acres.
Is Sylvan Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Sylvan Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
How deep is Sylvan Lake?
- Sylvan Lake has a maximum depth of 133 feet. The lake covers 119 acres.
Explore Sylvan Lake across LakeQuality
More lakes in New York
Other Lakes in New York
Where this data comes from
Measurements for Sylvan Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database