Longpoint Lake
Chautauqua County, New YorkLimited DataEutrophic
Longpoint Lake is a productive, nutrient-rich eutrophic lake in Chautauqua County, New York. Water quality is graded D based on 1 sampling years through 2025. Compared to the 15 other monitored lakes in Chautauqua County, Longpoint Lake ranks #11 for water quality.
Source: EPA Water Quality Portal sampling records, New York DNR, last sampled 2025-05-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.9 ft. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.9 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #11 of 16 lakes in Chautauqua County
Nearby Lakes in Chautauqua County
More New York Lake Rankings
Other Grade D Lakes in New York
Eutrophic Lakes in New York
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-05-08
Monitoring stations: 1