Eaton Reservoir
Madison County, New YorkView 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 · Oxygen depletion (low DO)
- 85 ft max depth
- Public access
- Limited data
Eaton Reservoir in Madison County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 18.2 ft visibility.
- Clarity
- 18.2 ft
- Max depth
- ~85 ft est.
- Public access
- Yes
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Watch Eaton Reservoir’s letter
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Why Eaton Reservoir has no grade
Eaton Reservoir 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, Eaton Reservoir is Not Rated — not an F. Its 18.2-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.
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. Grade methodology: LakeQuality methodology.
What Eaton Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water18.2 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is 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.
Water quality measurements for Eaton Reservoir
These readings exist but are not enough for an A–F grade — see why.
Crystal clear, you can see 18.2 ft down. TSI 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18.2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~85 ft est. |
| Average Depth | ~28 ft est. |
| Public Access | Yes |
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
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 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
Source: EPA ATTAINS assessment unit NY0602-0041 · Official waterbody report · Matched by proximity (0.27 km)
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. 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 Eaton Reservoir?
- Eaton Reservoir in Madison County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 18.2 ft visibility.
Is Eaton Reservoir safe to swim in?
- The letter is 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.
Explore Eaton Reservoir across LakeQuality
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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)