Dunham Reservoir
Rensselaer County, New York99 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Mercury
- 30 ft max depth
Dunham Reservoir in Rensselaer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 30 ft. Surface area: 99 acres.
Dunham Reservoir is a 99-acre lake in Rensselaer County, New York with a maximum depth of 30 feet (16-foot average).
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Dunham Reservoir is good for
From access and monitoring records, not editorial picks.
- Deep water30 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Dunham Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Dunham Reservoir 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 Dunham Reservoir
These are the measurements NY DEC publishes for Dunham Reservoir, 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 Dunham Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
30 ft
Average depth
16 ft
Surface area
99 acres
Shoreline
3.1 mi
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Fishing Dunham Reservoir
EPA Impairment Status
Dunham Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NY1301-0262 · Official waterbody report
Nearby Lakes in Rensselaer County
Frequently asked questions about Dunham Reservoir
Where is Dunham Reservoir?
- Dunham Reservoir 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 Dunham Reservoir?
- Dunham Reservoir in Rensselaer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 30 ft. Surface area: 99 acres.
Is Dunham Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Dunham Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Dunham Reservoir?
- Dunham Reservoir has a maximum depth of 30 feet and an average depth of 16 feet. The lake covers 99 acres.
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Where this data comes from
Measurements for Dunham Reservoir 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