Cochrane District County, Ontario · Water Quality Report Card
Jowsey Lake
Jowsey Lake in Cochrane District, Ontario received a water quality grade of B (Good). Water clarity: 2.1 m visibility. Phosphorus: 8.6 µg/L.
- Clarity
- 2.1 m
- Type
- Mesotrophic
Jowsey Lake is a mesotrophic lake in Cochrane District County, Ontario. Water quality is graded B based on 2 sampling years through 2008. Compared to the 134 other monitored lakes in Cochrane District County, Jowsey Lake ranks #70 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2008-06-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 6.9 ft. Phosphorus level: 8.6 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 m | C |
| Phosphorus | 8.6 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Jowsey Lake
Location
County Ranking
Ranked #70 of 135 lakes in Cochrane District
Cleaner Lakes Within 30 Miles
Jowsey Lake holds Grade B. 2 nearby lakes hold higher grades.
- AKeefer LakeTimiskaming District · 7.3 mi · Higher grade (B → A)
- ADana LakeCochrane District · 1.7 mi · Higher grade (B → A)
Nearby Lakes in Cochrane District
Explore Jowsey Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Jowsey 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: 2008-06-04
Monitoring stations: