Lake Waccabuc
Westchester 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 · Ammonia
- 48 ft max depth
- Limited data
Lake Waccabuc in Westchester County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.7 ft visibility.
- Clarity
- 5.7 ft
- Max depth
- ~48 ft est.
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Watch Lake Waccabuc’s letter
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Why Lake Waccabuc has no grade
Lake Waccabuc 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, Lake Waccabuc is Not Rated — not an F. Its 5.7-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.
Lake Waccabuc is a lake in Westchester County, New York with an estimated average depth of about 48 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-14. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Lake Waccabuc is listed impaired under Clean Water Act §303(d) (IR 5) for ammonia, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Lake Waccabuc
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 5.7 ft. TSI 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~48 ft est. |
| Average Depth | ~20 ft est. |
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 Lake Waccabuc.
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 Lake Waccabuc
EPA Impairment Status
Lake Waccabuc 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 NY1302-0140 · Official waterbody report
Regulated Pollution Sources Nearby
6 EPA-permitted facilities operate within about 5 miles of Lake Waccabuc under Clean Water Act (NPDES) discharge permits. 3 facilities have a reported Clean Water Act violation in the past three years.
- Michelle Estates Realty SubdivisionMount Kisco · 2.5 mi away · NPDES NY0214841Recent violation
- Increase Miller Elementary SchGoldens Bridge · 3.3 mi away · NPDES NY0036692Recent violation
- Wild Oaks SdGoldens Bridge · 4.1 mi away · NPDES NY0065706Recent violation
- Waccabuc Country ClubWaccabuc · 0.8 mi away · NPDES NY0105708
- Mobil S/S 17-NN4South Salem · 1.1 mi away · NPDES NY0219762
- Meadows @ Cross River CondominLewisboro · 2.6 mi away · NPDES NY0099520
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 Westchester County
Frequently asked questions about Lake Waccabuc
Where is Lake Waccabuc?
- Lake Waccabuc is a lake in Westchester 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 Lake Waccabuc?
- Lake Waccabuc in Westchester County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.7 ft visibility.
Is Lake Waccabuc safe to swim in?
- The letter is not a swimming clearance. Lake Waccabuc is listed impaired under Clean Water Act §303(d) (IR 5) for ammonia, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Lake Waccabuc?
- No published bathymetric survey covers Lake Waccabuc, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 48 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Lake Waccabuc 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)