Muskoka District County, Ontario · Water Quality Report Card
Tadenac Lake
Tadenac Lake in Muskoka District, Ontario received a water quality grade of B (Good). Water clarity: 3 m visibility. Phosphorus: 7.9 µg/L.
- Clarity
- 3 m
- Type
- Oligotrophic
Tadenac Lake is a cold, clear oligotrophic lake in Muskoka District County, Ontario. Water quality is graded B based on 2 sampling years through 2002. Compared to the 169 other monitored lakes in Muskoka District County, Tadenac Lake ranks #126 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2002-05-16. Grade methodology: LakeGrade methodology.
Watch Tadenac Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.8 ft. Phosphorus level: 7.9 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 m | C |
| Phosphorus | 7.9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Tadenac Lake
Compare lakeside cabins, hotels, and vacation rentals near Tadenac Lake in Muskoka District, Ontario — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Tadenac Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Tadenac Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Tadenac Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Tadenac Lake
Location
County Ranking
Ranked #126 of 170 lakes in Muskoka District
Cleaner Lakes Within 30 Miles
Tadenac Lake holds Grade B. 4 nearby lakes hold higher grades.
- AGo Home LakeMuskoka District · 5.1 mi · Higher grade (B → A)
- ACognashene LakeMuskoka District · 6.1 mi · Higher grade (B → A)
- AKapikog LakeParry Sound District · 8.2 mi · Higher grade (B → A)
- AConger LakeParry Sound District · 9 mi · Higher grade (B → A)
Nearby Lakes in Muskoka District
Explore Tadenac Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Oligotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Tadenac 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: 2002-05-16
Monitoring stations: