Lake Superior
Sullivan County, New York195 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Oxygen depletion (low DO)
- 28 ft max depth
Lake Superior in Sullivan County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 28.2 ft. Surface area: 195 acres.
Lake Superior is a 195-acre lake in Sullivan County, New York with a maximum depth of 28 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Lake Superior is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Whether Lake Superior 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 Lake Superior
These are the measurements NY DEC publishes for Lake Superior, 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 Lake Superior
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
28.2 ft
Surface area
195 acres
Shoreline
4 mi
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Stays near Lake Superior
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Fishing Lake Superior
EPA Impairment Status
Lake Superior 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 NY1401-0051 · Official waterbody report
Nearby Lakes in Sullivan County
Frequently asked questions about Lake Superior
Where is Lake Superior?
- Lake Superior is a lake in Sullivan 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 Lake Superior?
- Lake Superior in Sullivan County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 28.2 ft. Surface area: 195 acres.
Is Lake Superior safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Superior 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 Lake Superior?
- Lake Superior has a maximum depth of 28.2 feet. The lake covers 195 acres.
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Where this data comes from
Measurements for Lake Superior 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