Cuba Lake
Allegany County, New York465 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)
- 52 ft max depth
- Limited data
Cuba Lake in Allegany County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.6 ft visibility. Surface area: 465 acres.
- Clarity
- 14.6 ft
- Max depth
- ~52 ft est.
- Area
- 465 acres
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Watch Cuba Lake’s letter
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Why Cuba Lake has no grade
Cuba 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, Cuba Lake is Not Rated — not an F. Its 14.6-foot median from 7 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.
Cuba Lake is a 465-acre lake in Allegany County, New York with an estimated average depth of about 52 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-15. Grade methodology: LakeQuality methodology.
What Cuba Lake is good for
From access and monitoring records, not editorial picks.
- Clear water14.6 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Cuba Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Water quality measurements for Cuba Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 14.6 ft. TSI 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.6 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~52 ft est. |
| Average Depth | ~39 ft est. |
| Surface Area | 465 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 Cuba 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 Cuba Lake
Reservoir Info (USACE NID)
Cuba Lake is a man-made reservoir impounded by the Cuba Lake Dam (completed 1872), built primarily for recreation on the OIL CREEK; earth-type dam, 55 ft tall and 1,750 ft long.
- Surface area
- 465 ac
- Normal storage
- 8,215 ac-ft
- Max storage
- 16,498 ac-ft
- Drainage area
- 25.3 sq mi
- Hazard class
- High
- Owner
- CUBA LAKE DISTRICT;New York State Office of General Services
Source: USACE National Inventory of Dams, NID ID NY00455 · Operator website
EPA Impairment Status
Cuba 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 NY0201-0016 · Official waterbody report
Regulated Pollution Sources Nearby
4 EPA-permitted facilities operate within about 5 miles of Cuba Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Cuba (V) WwtfCuba · 2.2 mi away · NPDES NY0023515Recent violation
- Great Lakes Cheese Cuba PlantCuba · 3.6 mi away · NPDES NY0003646Recent violation
- Deming Electoplating Corp.Cuba · 2.1 mi away · NPDES NYP080560
- Acme Electric Corp, EngineeredUnknown · 2.2 mi away · NPDES NYP080020
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 Allegany County
Frequently asked questions about Cuba Lake
Where is Cuba Lake?
- Cuba Lake is a lake in Allegany 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 Cuba Lake?
- Cuba Lake in Allegany County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.6 ft visibility. Surface area: 465 acres.
Is Cuba Lake safe to swim in?
- The letter is not a swimming clearance. Cuba Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
How deep is Cuba Lake?
- No published bathymetric survey covers Cuba Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 52 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 465 acres.
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Where this data comes from
7 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
NALMS7 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)