Genegantslet Lake
Chenango County, New York112 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.
- 50 ft max depth
- Public access
- Limited data
Genegantslet Lake in Chenango County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12 ft visibility. Surface area: 112 acres.
- Clarity
- 12 ft
- Max depth
- ~50 ft est.
- Area
- 112 acres
- Public access
- Yes
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Watch Genegantslet Lake’s letter
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Why Genegantslet Lake has no grade
Genegantslet 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, Genegantslet Lake is Not Rated — not an F. Its 12-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.
Genegantslet Lake is a 112-acre lake in Chenango County, New York with an estimated average depth of about 50 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-15. Grade methodology: LakeQuality methodology.
What Genegantslet Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Genegantslet Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 12 ft. TSI 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~50 ft est. |
| Average Depth | ~20 ft est. |
| Surface Area | 112 acres |
| 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 Genegantslet 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 Genegantslet Lake
Reservoir Info (USACE NID)
Genegantslet Lake is a man-made reservoir impounded by the Genegantslet Lake Dam (completed 1900), built primarily for recreation on the TR-GENEGANTSLET CREEK; earth-type dam, 10 ft tall and 300 ft long.
- Surface area
- 112 ac
- Normal storage
- 1,019 ac-ft
- Max storage
- 1,064 ac-ft
- Drainage area
- 5.07 sq mi
- Hazard class
- High
- Owner
- GENEGANTSLET LAKE ASSOC.
Source: USACE National Inventory of Dams, NID ID NY00846 · Operator website
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Genegantslet Lake under Clean Water Act (NPDES) discharge permits.
- Bowman Lake State ParkJamesville · 4.6 mi away · NPDES NY0028126
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 Chenango County
Frequently asked questions about Genegantslet Lake
Where is Genegantslet Lake?
- Genegantslet Lake is a lake in Chenango 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 Genegantslet Lake?
- Genegantslet Lake in Chenango County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12 ft visibility. Surface area: 112 acres.
Is Genegantslet Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Genegantslet Lake?
- No published bathymetric survey covers Genegantslet Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 50 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 112 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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)