Nipissing District County, Ontario · Water Quality Report Card
Sheedy Lake
Sheedy Lake in Nipissing District, Ontario received a water quality grade of D (Poor). Water clarity: 1.7 m visibility.
- Clarity
- 1.7 m
- Type
- Eutrophic
Sheedy Lake is a productive, nutrient-rich eutrophic lake in Nipissing District County, Ontario. Water quality is graded D based on 1 sampling years through 2025. Compared to the 280 other monitored lakes in Nipissing District County, Sheedy Lake ranks #278 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-10-12. 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 5.4 ft. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.65 m | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Sheedy Lake
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Fishing Sheedy Lake
Location
County Ranking
Ranked #278 of 281 lakes in Nipissing District
Cleaner Lakes Within 30 Miles
Sheedy Lake holds Grade D. 5 nearby lakes hold higher grades.
- ATurtle LakeNipissing District · 3.7 mi · Two grade letters higher (D → A)
- ATrout LakeNipissing District · 11.4 mi · Two grade letters higher (D → A)
- ARobichaud LakeNipissing District · 2.1 mi · Two grade letters higher (D → A)
- ATalon LakeNipissing District · 2.4 mi · Two grade letters higher (D → A)
- BNosbonsing LakeNipissing District · 7.5 mi · Two grade letters higher (D → B)
Nearby Lakes in Nipissing District
Explore Sheedy Lake across LakeGrade
More Ontario Lake Rankings
Other Grade D Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Sheedy Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2025-10-12
Monitoring stations: