Duane Lake is a 120-acre productive, nutrient-rich eutrophic lake in Schenectady County, New York. Water quality is graded D based on 1 sampling years through 2020.
Source: EPA Water Quality Portal sampling records, New York DNR, last sampled 2020-09-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.8 ft. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.8 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 120 acres |
Where to stay near Duane Lake
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Fishing Duane Lake
Location
County Ranking
Ranked #1 of 1 lakes in Schenectady County
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High nutrients, frequent algae, reduced clarity
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Reservoir Info (USACE NID)
Duane Lake is a man-made reservoir impounded by the Duane Lake Dam (completed 1926), built primarily for recreation on the TR-BOZENKILL; earth-type dam, 20 ft tall and 120 ft long.
- Surface area
- 120 ac
- Normal storage
- 10 ac-ft
- Max storage
- 250 ac-ft
- Drainage area
- 1.25 sq mi
- Hazard class
- Low
- Owner
- PAUL M. CALLAHAN
Source: USACE National Inventory of Dams, NID ID NY00510 · Operator website
EPA Impairment Status
Duane Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit NY1311-0006 · Official waterbody report
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
7 EPA-permitted facilities operate within about 5 miles of Duane Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Mikey Mart IiDuanesburg · 1.1 mi away · NPDES NY0268275Recent violation
- Duanesburg Sd#1 StpDuanesburg · 3.4 mi away · NPDES NY0261271Recent violation
- Hillcrest Mobile Home ParkDuanesburg · 0.9 mi away · NPDES NY0224855
- Stewart'S Shop - Duanesburg #250Duanesburg · 1.3 mi away · NPDES NY0205559
- Hillcrest Commons Mobile Home ParkDuanesburg · 2.1 mi away · NPDES NY0269018
- Kountry Knolls Trailer CourtKnox · 2.9 mi away · NPDES NY0103179
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-09-15
Monitoring stations: 1