Windfall Pond
Herkimer County, New YorkView mapDirections
NY DEC publishes the water-quality measurements for Windfall Pond. Here is what has been measured.
- Oligotrophic
- Limited data
Windfall Pond in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 1.6 µg/L.
Windfall Pond is a cold, clear oligotrophic lake in Herkimer County, New York. Overall water quality is declining over recent sampling years. Compared to the 5 other monitored lakes in Herkimer County, Windfall Pond ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2023-07-05. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Windfall Pond 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 Windfall Pond
These are the measurements NY DEC publishes for Windfall Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 9 µg/L. Chlorophyll-a 1.6 µg/L. TSI 35.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 9µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 1.6µg/L | Good GoodFairPoor |
| 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 Windfall Pond
Answers come straight from the public measurements and survey records on this page.
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Fishing Windfall Pond
Water Quality Trend: Worsening
Based on 4 years of monitoring (2020–2023).
Phosphorus
Worsening+0.6 µg/L/yr4 years
Chlorophyll-a
Worsening+5 µg/L/yr3 years
Nearby Lakes in Herkimer County
Frequently asked questions about Windfall Pond
Where is Windfall Pond?
- Windfall Pond is a lake in Herkimer 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 Windfall Pond?
- Windfall Pond in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 1.6 µg/L.
Is Windfall Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Windfall Pond across LakeQuality
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Where this data comes from
7 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS New York Water Science Center
USGS-NY7 samples · 2020–2023
Analytical methods
- P, wu, WCA, persulfate CF color
- Chlorophyll a,fluorometric,uncor
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.