Queneska Island Lake is a mesotrophic lake in Essex County, New York. Water quality is graded A based on 3 sampling years through 2022. Overall water quality is declining over recent sampling years. Compared to the 8 other monitored lakes in Essex County, Queneska Island Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, New York DNR, last sampled 2022-08-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 17.4 ft down. Phosphorus level: 15 µg/L. Chlorophyll-a: 3.4 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 17.4 ft | A |
| Phosphorus | 15 µg/L | A |
| Chlorophyll-a (Algae) | 3.4 µg/L | A |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Queneska Island Lake
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Fishing Queneska Island Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.1 m/yr | 4 |
| Phosphorus | ↓ Declining | +1.81 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -0.77 µg/L/yr | 4 |
Location
County Ranking
Ranked #6 of 9 lakes in Essex County
Nearby Lakes in Essex County
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Moderate nutrients, good water quality
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More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-08-06
Monitoring stations: 1