Kenora District County, Ontario · Water Quality Report Card
Onnie Lake
Onnie Lake in Kenora District, Ontario received a water quality grade of B (Good). Water clarity: 2.6 m visibility. Phosphorus: 12.6 µg/L.
- Clarity
- 2.6 m
- Type
- Mesotrophic
Onnie Lake is a mesotrophic lake in Kenora District County, Ontario. Water quality is graded B based on 2 sampling years through 2009. Compared to the 341 other monitored lakes in Kenora District County, Onnie Lake ranks #211 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2009-05-22. 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 8.5 ft. Phosphorus level: 12.6 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.6 m | C |
| Phosphorus | 12.6 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Onnie Lake
Location
County Ranking
Ranked #211 of 342 lakes in Kenora District
Cleaner Lakes Within 30 Miles
Onnie Lake holds Grade B. 2 nearby lakes hold higher grades.
- AConifer LakeKenora District · 27.8 mi · Higher grade (B → A)
- AConfusion LakeKenora District · 19.3 mi · Higher grade (B → A)
Nearby Lakes in Kenora District
Explore Onnie 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 Onnie 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: 2009-05-22
Monitoring stations: