Nassau Lake
Rensselaer County, New York175 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Nutrients (phosphorus, nitrogen)
- 66 ft max depth
Nassau Lake in Rensselaer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 65.6 ft. Surface area: 175 acres.
Nassau Lake is a 175-acre lake in Rensselaer County, New York with a maximum depth of 66 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Nassau Lake is good for
From access and monitoring records, not editorial picks.
- Deep water65.6 ft surveyed max depth
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Nassau Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), pCBs. Check local advisories before you swim.
Whether Nassau 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 Nassau Lake
These are the measurements NY DEC publishes for Nassau 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 Nassau Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
65.6 ft
Surface area
175 acres
Shoreline
2.7 mi
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Stays near Nassau Lake
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Fishing Nassau Lake
EPA Impairment Status
Nassau 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, Recreation.
Source: EPA ATTAINS assessment unit NY1310-0001 · Official waterbody report
Nearby Lakes in Rensselaer County
Frequently asked questions about Nassau Lake
Where is Nassau Lake?
- Nassau Lake is a lake in Rensselaer 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 Nassau Lake?
- Nassau Lake in Rensselaer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 65.6 ft. Surface area: 175 acres.
Is Nassau Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Nassau Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), pCBs. Check local advisories before you swim.
How deep is Nassau Lake?
- Nassau Lake has a maximum depth of 65.6 feet. The lake covers 175 acres.
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Where this data comes from
Measurements for Nassau 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