Duane Lake
Schenectady County, New York120 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · Nutrients (phosphorus, nitrogen)
- 32 ft max depth
- Limited data
Duane Lake in Schenectady County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.8 ft visibility. Surface area: 120 acres.
- Clarity
- 3.8 ft
- Max depth
- ~32 ft est.
- Area
- 120 acres
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Watch Duane Lake’s letter
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Why Duane Lake has no grade
Duane Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Duane Lake is Not Rated — not an F. Its 3.8-foot median from 8 readings collected 2020 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by NYSDEC and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Duane Lake is a 120-acre lake in Schenectady County, New York with an estimated average depth of about 32 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-15. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Duane Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Duane Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 3.8 ft. TSI 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~32 ft est. |
| Average Depth | ~14 ft est. |
| Surface Area | 120 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. New York has not published bathymetry for Duane Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Duane Lake
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
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.
Nearby Lakes in Schenectady County
Frequently asked questions about Duane Lake
Where is Duane Lake?
- Duane Lake is a lake in Schenectady County, New York. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Duane Lake?
- Duane Lake in Schenectady County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.8 ft visibility. Surface area: 120 acres.
Is Duane Lake safe to swim in?
- The letter is not a swimming clearance. Duane Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Duane Lake?
- No published bathymetric survey covers Duane Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 32 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 120 acres.
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Where this data comes from
8 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS8 samples · 2020
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)