Timiskaming District County, Ontario · 47.45°N · Water Quality Report Card
Timiskaming Lake
Timiskaming Lake in Timiskaming District, Ontario received a water quality grade of C (Fair). Water clarity: 0.8 m visibility. Phosphorus: 25.8 µg/L.
- Clarity
- 0.8 m
- Type
- Eutrophic
Timiskaming Lake is a productive, nutrient-rich eutrophic lake in Timiskaming District County, Ontario. Water quality is graded C based on 2 sampling years through 2025. Compared to the 87 other monitored lakes in Timiskaming District County, Timiskaming Lake ranks #86 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-10-17. Grade methodology: LakeGrade methodology.
Watch Timiskaming Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 2.6 ft of visibility. Phosphorus level: 25.8 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 m | F |
| Phosphorus | 25.8 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Timiskaming Lake
Compare lakeside cabins, hotels, and vacation rentals near Timiskaming Lake in Timiskaming 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 Timiskaming 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 Timiskaming Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Timiskaming Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Timiskaming Lake
Location
County Ranking
Ranked #86 of 88 lakes in Timiskaming District
Cleaner Lakes Within 30 Miles
Timiskaming Lake holds Grade C. 5 nearby lakes hold higher grades.
- ASharp LakeTimiskaming District · 7.1 mi · Two grade letters higher (C → A)
- AGillies LakeTimiskaming District · 9 mi · Two grade letters higher (C → A)
- ABass LakeTimiskaming District · 9.2 mi · Two grade letters higher (C → A)
- ALoon LakeTimiskaming District · 9.8 mi · Two grade letters higher (C → A)
- ABartle LakeTimiskaming District · 12.1 mi · Two grade letters higher (C → A)
Nearby Lakes in Timiskaming District
Explore Timiskaming Lake across LakeGrade
More Ontario Lake Rankings
Other Grade C Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Timiskaming 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: 2025-10-17
Monitoring stations: