Muskoka District County, Ontario · Water Quality Report Card
Menominee Lake
Menominee Lake in Muskoka District, Ontario received a water quality grade of C (Fair). Water clarity: 2.4 m visibility.
- Clarity
- 2.4 m
- Type
- Mesotrophic
Menominee Lake is a mesotrophic lake in Muskoka District County, Ontario. Water quality is graded C based on 1 sampling years through 2025. Compared to the 169 other monitored lakes in Muskoka District County, Menominee Lake ranks #163 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-05-20. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 7.9 ft. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.4 m | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Menominee Lake
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Fishing Menominee Lake
Location
County Ranking
Ranked #163 of 170 lakes in Muskoka District
Cleaner Lakes Within 30 Miles
Menominee Lake holds Grade C. 5 nearby lakes hold higher grades.
- ATucker LakeMuskoka District · 2.2 mi · Two grade letters higher (C → A)
- AEcho LakeMuskoka District · 3.7 mi · Two grade letters higher (C → A)
- BDickie LakeMuskoka District · 3.9 mi · Higher grade (C → B)
- BMoot LakeMuskoka District · 3.6 mi · Higher grade (C → B)
- BGilleach LakeMuskoka District · 4.6 mi · Higher grade (C → B)
Nearby Lakes in Muskoka District
Explore Menominee Lake across LakeGrade
More Ontario Lake Rankings
Other Grade C Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Menominee 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: 2025-05-20
Monitoring stations: