Eaton Reservoir
Madison County, New YorkView mapDirections
NY DEC publishes the water-quality measurements for Eaton Reservoir. Here is what has been measured.
- Impaired · Oxygen depletion (low DO)
- 85 ft max depth
- Public access
- Limited data
Eaton Reservoir in Madison County, New York has water-quality measurements published by NY DEC, shown here as reported. Water clarity: 18.2 ft visibility.
Eaton Reservoir is a lake in Madison County, New York with an estimated average depth of about 85 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-12. Methodology: how these readings are compared.
What Eaton Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water18.2 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Eaton Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Whether Eaton 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 Eaton Reservoir
These are the measurements NY DEC publishes for Eaton Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 18.2 ft down. TSI 35.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 18.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 35 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Eaton Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~85 ft est.
Public access
Yes
Listed by NY DEC
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 Eaton Reservoir.
Lake Size & Watershed
Watershed (drainage) area
7 sq mi
HydroLAKES / HydroSHEDS
Surface area
250 acres
HydroLAKES / HydroSHEDS
Shoreline
5.2 mi
HydroLAKES / HydroSHEDS
Elevation
1,427 ft
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.
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Fishing Eaton Reservoir
EPA Impairment Status
Eaton Reservoir 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 NY0602-0041 · Official waterbody report
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Eaton Reservoir under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Morrisville (V) WwtfMorrisville · 3.4 mi away · NPDES NY0261742Recent violation
- Suny Morrisville Aquaculture CenterMorrisville · 3.4 mi away · NPDES NY0213942
- Suny Morrisville WwtpMorrisville · 3.4 mi away · NPDES NY0029700
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 Madison County
Frequently asked questions about Eaton Reservoir
Where is Eaton Reservoir?
- Eaton Reservoir is a lake in Madison 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 Eaton Reservoir?
- Eaton Reservoir in Madison County, New York has water-quality measurements published by NY DEC, shown here as reported. Water clarity: 18.2 ft visibility.
Is Eaton Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Eaton Reservoir 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 Eaton Reservoir?
- No published bathymetric survey covers Eaton Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 85 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Can I fish at Eaton Reservoir?
- Public access to Eaton Reservoir is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by New York's fish and wildlife agency, so check its current regulations before you go.
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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)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from 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)