Timiskaming District County, Ontario · Water Quality Report Card
Round Lake
Round Lake in Timiskaming District, Ontario received a water quality grade of C (Fair). Water clarity: 1.7 m visibility. Phosphorus: 20.3 µg/L.
- Clarity
- 1.7 m
- Type
- Mesotrophic
Round Lake is a mesotrophic 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, Round Lake ranks #82 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-08-01. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5.6 ft. Phosphorus level: 20.3 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.7 m | D |
| Phosphorus | 20.3 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Round Lake
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Fishing Round Lake
Location
County Ranking
Ranked #82 of 88 lakes in Timiskaming District
Cleaner Lakes Within 30 Miles
Round Lake holds Grade C. 4 nearby lakes hold higher grades.
- BHotchkin Lake Little Kenogami)Timiskaming District · 13.4 mi · Higher grade (C → B)
- BKenogami LakeTimiskaming District · 11.8 mi · Higher grade (C → B)
- BGoodfish LakeTimiskaming District · 12.5 mi · Higher grade (C → B)
- BMctavish LakeTimiskaming District · 12.7 mi · Higher grade (C → B)
Nearby Lakes in Timiskaming District
Explore Round 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 Round 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: 2025-08-01
Monitoring stations: